In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Question: Which of Messner's teachers at the University of Munich was older? Passage:After Meissner’s abitur at the Humanistisches Gymnasium, in 1910, he began the study of physics and mathematics at University of Tübingen. After three terms, he went to the University of Munich as a student of the experimentalist Wilhelm Röntgen and the theoretician Arnold Sommerfeld. After one year at Munich, he returned to Tübingen to be able to study spectroscopy with Friedrich Paschen. While still a student in 1914, Meissner was able to prove the existence of oxygen lines in the solar spectrum. He was awarded his doctorate in 1915, on a thesis with the title Interferometrische Wellenlängenbestimmung im infraroten Spektralbereich. In 1916 he became an assistant to Edgar Meyer at the University of Zurich, under whom he completed his Habilitation, in 1918, with the Habilitationsschrift title Untersuchungen des Neonspektrums. The following year, he married the Polish physicist Doctor Janka Kohn.
 Links: a. Habilitation b. Ludwig Maximilian University of Munich c. University of Tübingen d. Wilhelm Röntgen
d

Question: How long was the event where Norton made his first of four combat jumps as an executive officer? Passage:Norton's first assignment out of West Point was to 12th Infantry Regiment, 4th Infantry Division as a company commander. He then returned to Infantry School in the fall of 1942 to attend the Battalion Commander and Staff Officers Course and the Parachute Course. Following his completion of the course, he reported to the 82nd Airborne Division in North Africa. He was soon promoted to executive officer of the 2d Battalion, 505th Parachute Infantry Regiment. Two months later, he was again promoted, to S-3 (operations officer) of the Regiment. He made his first of four combat jumps as an executive officer, participating in the Invasion of Sicily. After returning to North Africa, he made a second combat jump into Salerno, Italy, blocking German forces who were trying to attack US amphibious forces. His third jump was in support of the Invasion of Normandy on D-Day, 6 June 1944. In July of that year, he assumed command of the 3d Battalion; he was promoted the next month to G3 of the 82d Airborne Division. Norton made his fourth combat jump in September, in the Netherlands to take control of the bridges from the Dutch border to Arnhem as part of Operation Market Garden.
 Links: a. 82nd Airborne Division b. Operation Market Garden c. Netherlands d. Allied invasion of Sicily
d

Question: Which of the two United States regions impacted by the second largest February tornado outbreak on record has a larger population? Passage:The second largest February tornado outbreak on record impacted the Gulf Coast and East Coast regions of the United States beginning on February 23. The first significant tornadoes of the outbreak moved across southeastern Louisiana and southern Mississippi that evening, leaving significant damage and three deaths. The towns of Livingston and Laplace, Louisiana sustained heavy damage from strong EF2 tornadoes, and another EF2 near Purvis, Mississippi killed one person in a mobile home. An EF3 tornado also caused major structural damage in Paincourtville, Louisiana before destroying an RV park in Convent, killing two people at that location. Three simultaneous waterspouts were observed over Lake Pontchartrain during the event as well. Later that night, a large supercell thunderstorm developed over the Gulf of Mexico and moved ashore, producing a destructive EF3 tornado in Pensacola, Florida. The tornado injured three people and destroyed homes, townhouses, apartments, and a GE warehouse.
 Links: a. Livingston, Louisiana b. Gulf Coast of the United States c. Lake Pontchartrain d. Paincourtville, Louisiana

b