Question: Which of the following women was the first woman promoted to Master Chief Petty Officer in the US Navy: Anna Der-Vartanian or Eve Beglarian?

full_context: Document 1: Master chief petty officer: Master chief petty officer (MCPO) is the ninth, and highest, enlisted rate (pay grade E-9) in the United States Navy and United States Coast Guard, just above senior chief petty officer (SCPO). Master chief petty officers are addressed as "Master Chief (last name)" in the colloquial and they constitute the top 1.25% of the enlisted members of the maritime forces.
Document 2: Master-at-arms (United States Navy): The master-at-arms (MA) rating is responsible for law enforcement and force protection in the United States Navy—equivalent to the United States Army Military Police, the United States Marine Corps Military Police, the United States Air Force Security Forces, and the United States Coast Guard's Maritime Law Enforcement Specialist. It is one of the oldest ratings in the United States Navy, having been recognized since the inception of the U.S. Navy. It has had two rating badges during its history. Its original MAA rating mark was an inverted star until disestablished (1797–1921). On 20 May 1958 the inverted star reemerged as a nod to the Historical MAA Rating whose duty was to provide good order and discipline aboard ships over the enlisted crews. Public Law 85-422, the Military Pay Act of 1958, established two new enlisted pay grades of E-8 and E-9 in all five branches of the U.S. Armed Forces. In the U.S. Navy and U.S. Coast Guard, the new E-8 pay grade was titled Senior Chief Petty Officer and the new E-9 pay grade as Master Chief Petty Officer; as a result it was designated a single (E-8) or double (E-9) inverted star above the anchor for all collar devices and rating badges this point forward. The MCPON Rating (1971) specialty mark was established using the former MAA inverted star and later expanded to the Command Rates of Fleet / Command Master Chief (1995) or Senior Chief (2015) Ratings. The current MAA rating mark following its reestablishment has been a police badge with internal star (1973–present), emblematic of its police or sheriff duties as a modern law enforcement specialist.
Document 3: Master Chief Petty Officer of the Navy: The Master Chief Petty Officer of the Navy (MCPON, ) is a unique non-commissioned rank and position of office of the United States Navy, which has with it the paygrade of E-9. The holder of this position is the most senior enlisted member of the U.S. Navy, equivalent to the Sergeant Major of the Army, Chief Master Sergeant of the Air Force, Sergeant Major of the Marine Corps, Master Chief Petty Officer of the Coast Guard, and Senior Enlisted Advisor to the Chairman of the Joint Chiefs of Staff. They are appointed by the Chief of Naval Operations to serve as a spokesperson to address the issues of enlisted personnel to the highest positions in the Navy. As such, they are the senior enlisted advisor to the Chief of Naval Operations as well as the Chief of Naval Personnel. Their exact duties vary, depending on the CNO, though they generally devotes much of their time to traveling throughout the Navy observing training and talking to sailors and their families. Their personnel code is N00A as the senior enlisted advisor to Chief of Naval Operations and PERS-00D in their special advisory capacity to Chief of Naval Personnel/Deputy Chief of Naval Operations (Manpower, Personnel and Training). In 1988, the MCPON's spouse was made the Ombudsman-at-Large, authorizing them to travel around the fleet with their spouse, representing the interests of the spouses of enlisted members. While the MCPON is a non-commissioned officer, this billet is unofficially protocol equivalent to a vice admiral.
Document 4: Cathy Berberian: Catherine Anahid Berberian (July 4, 1925 – March 6, 1983) was an American mezzo-soprano and composer based in Italy. She interpreted contemporary avant-garde music composed, among others, by Luciano Berio, Bruno Maderna, John Cage, Henri Pousseur, Sylvano Bussotti, Darius Milhaud, Roman Haubenstock-Ramati, and Igor Stravinsky. She also interpreted works by Claudio Monteverdi, Heitor Villa-Lobos, Kurt Weill, Philipp Zu Eulenburg, arrangements of songs by The Beatles, and folk songs from several countries and cultures. As a composer, she wrote "Stripsody" (1966), in which she exploits her vocal technique using comic book sounds (onomatopoeia), and "Morsicat(h)y" (1969), a composition for the keyboard (with the right hand only) based on Morse code.
Document 5: Eve Beglarian: Eve Beglarian (born Ann Arbor, Michigan, U.S., July 22, 1958) is a contemporary American composer, performer and audio producer of Armenian descent. Her music is often characterized as postminimalist.
Document 6: List of United States Navy enlisted rates: A United States Navy enlisted rate indicates where an enlisted Sailor stands within the chain of command, and also defines one's pay grade. An enlisted sailor's rate is similar conceptually to a naval officer's rank. Only Naval Officers carry the term "rank". The word "rate" refers to an enlisted sailor's pay grade, while the word "rating" refers to one's area of occupational specialization within the enlisted Navy. Associated with the enlisted pay grades is a numbering system from the most junior enlisted sailor ("E-1") to the most senior enlisted sailor ("E-9"). This enlisted numbering system is the same across all five branches of the U.S. Military. All E-1 through E-3 are known as Seamen. E-4 through E-6 are called Petty Officers. All E-7s are called Chief Petty Officer, E-8s Senior Chief Petty Officer, and E-9s Master Chief Petty Officer. Rates are displayed on a rating badge, which is a combination of rate and rating. E-2s and E-3s have color-coded group rate marks based on their career field. Personnel in pay grade E-1, since 1996, do not have an insignia to wear.
Document 7: Anna Der-Vartanian: Anna Der-Vartanian (December 6, 1920 – August 4, 2011) was the first woman promoted to Master Chief Petty Officer (E-9), the highest enlisted rate in the United States Navy.
Document 8: Bethany Beardslee: Bethany Beardslee (born December 25, 1925) is an American soprano particularly noted for her collaborations with major 20th-century composers, such as Igor Stravinsky, Milton Babbitt, Pierre Boulez, George Perle, Sir Peter Maxwell Davies and her performances of great contemporary classical music by Arnold Schoenberg, Alban Berg, Anton Webern. Her legacy amongst midcentury composers was as a "composer's singer"—for her commitment to the highest art of new music. Milton Babbitt said of her "She manages to learn music no one else in the world can. She can work, work, work." In a 1961 interview for Newsweek, Beardslee flaunted her unflinching repertoire and disdain for commercialism: "I don't think in terms of the public... Music is for the musicians. If the public wants to come along and study it, fine. I don't go and try to tell a scientist his business because I don't know anything about it. Music is just the same way. Music is "not" entertainment."
Document 9: Arvo Pärt: Arvo Pärt (] ; born 11 September 1935) is an Estonian composer of classical and religious music. Since the late 1970s, Pärt has worked in a minimalist style that employs his self-invented compositional technique, tintinnabuli. Pärt's music is in part inspired by Gregorian chant. His most performed works include "Fratres" (1977), "Spiegel im Spiegel" (1978), and "Für Alina" (1976). Pärt has been the most performed living composer in the world for five consecutive years.
Document 10: Daria Semegen: Daria Semegen (born June 27, 1946) is a contemporary American composer of classical music. While she has composed pieces for traditional instruments — her "Jeux des quatres" (1970), for example, is scored for clarinet, trombone, cello, and piano — she is best known as a "respected electronic composer." She is a figure on the academic side of the electronic music genre, connected with the conservatory and the university (like her older contemporary Karlheinz Stockhausen), rather than the more popular expression of the genre that followed upon the widespread availability of synthesizers and personal computers in the 1970s and after. Her writing covers a range of topics related to musical composition and has been the subject of studies by other scholars.
Document 11: Chief petty officer (United States): Chief Petty Officer (CPO) is the seventh enlisted rate (E-7) in the United States Navy and U.S. Coast Guard, just above petty officer first class and below senior chief petty officer. The rate of chief petty officer is that of a senior non-commissioned officer, and was established on 1 April 1893 for the United States Navy. The United States Congress first authorized the Coast Guard to use the promotion to chief petty officer on 18 May 1920. Chief petty officer is also the final cadet rate in the U.S. Naval Sea Cadet Corps.
Document 12: Barbara Kolb: Barbara Kolb (b. Hartford, Connecticut, February 10, 1939) is an American composer. Her music uses sound masses and often creates vertical structures through simultaneous rhythmic or melodic units (motifs or figures). Barbara's musical styling can be identified by her use of colorful textures, impressionistic touch, and atonal vocabulary, with influences stemming from literary and visual arts. She was the first American woman composer to win the Rome Prize. She received her B.M. (cum laude, 1961) and M.M. degrees (1964) from the Hartt College of Music (now The Hartt School) at the University of Hartford, and studied with Arnold Franchetti, Lukas Foss and Gunther Schuller. Following her various degrees, Kolb relocated to Vienna, Austria from 1966-1967 with a Fulbright Fellowship grant. She was the first female American composer to win the Rome Prize [Prix de Rome], in 1969. From 1979 - 1982, Kolb served as the artistic director of contemporary music at the Third Street Music School Settlement, where she presented the "Music New to New York" concert series. Additionally, she has had a professional teaching career teaching at Rhode Island College and Eastman School of Music as a visiting professor in Composition. A selection of Barbara's compositions were featured at the Kennedy Center, performed by the "Theatre Chamber Players" as part of the Boston Modern Orchestra Project. However, Kolb was not only known as a composer; but she was also proficient at the Eb clarinet.
Document 13: La Monte Young: La Monte Thornton Young (born October 14, 1935) is an American avant-garde composer, musician, and artist generally recognized as the first minimalist composer. His works are cited as notable examples of post-war experimental and contemporary music, and were tied to New York's downtown music and Fluxus art scenes.
Document 14: USS Delbert D. Black: USS "Delbert D. Black" (DDG-119) will be an "Arleigh Burke"-class destroyer of the United States Navy. She is named in honor of Master Chief Petty Officer Delbert Black, the first Master Chief Petty Officer of the Navy (MCPON), who died in 2000. He is remembered for establishing the role of the Navy's senior enlisted leader, and the ship naming is the culmination of a decade of advocacy by MCPONs to honor him with a combatant ship, believed to be the first time in many decades that a ship has been named for an enlisted person's superior performance and impact, rather than valor or personal sacrifice. "Delbert D. Black" will be the fourth of eight planned Flight IIA "technology insertion" ships, which will contain elements of the Flight III ships projected to begin with DDG-124.
Document 15: Overstepping: Overstepping is the 1998 debut album by avant-garde composer Eve Beglarian. The disc features sixty-four minutes of music with four different works composed between 1984 and 1995 with performers Kathleen Supové (keyboards), Margaret Lancaster (flute), and Eve Beglarian.
ground_truth: Anna Der-Vartanian