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.

[Q]: Question: What are earthwork mounds made of? Passage:Indigenous peoples inhabited Missouri for thousands of years before European exploration and settlement. Archaeological excavations along the rivers have shown continuous habitation for more than 7,000 years. Beginning before 1000 CE, there arose the complex Mississippian culture, whose people created regional political centers at present-day St. Louis and across the Mississippi River at Cahokia, near present-day Collinsville, Illinois. Their large cities included thousands of individual residences, but they are known for their surviving massive earthwork mounds, built for religious, political and social reasons, in platform, ridgetop and conical shapes. Cahokia was the center of a regional trading network that reached from the Great Lakes to the Gulf of Mexico. The civilization declined by 1400 CE, and most descendants left the area long before the arrival of Europeans. St. Louis was at one time known as Mound City by the European Americans, because of the numerous surviving prehistoric mounds, since lost to urban development. The Mississippian culture left mounds throughout the middle Mississippi and Ohio river valleys, extending into the southeast as well as the upper river.
 Links: a. Archaeology b. Collinsville, Illinois c. Earthworks (archaeology) d. Collinsville, Illinois
[A]: c


[Q]: Question: What city did Fauntleroy study medicine in? Passage:Archibald Magill Fauntleroy (b. in Warrenton, Virginia, 8 July 1837; d. in Staunton, Virginia, 19 June 1886) was a physician. He graduated in medicine at the University of Pennsylvania in 1856, and in 1857 entered the United States Army as assistant surgeon; but, upon the start of the Civil War, he and his brother, a lieutenant in the navy, resigned at the same time with their father, Thomas T. Fauntleroy. He became a surgeon in the Confederate army, and was president of the board for the admission of surgeons, and chief officer on the medical staff of Gen. Joseph E. Johnston, and served with him until the battle of Seven Pines. He was then ordered to build and organize the hospitals at Danville, Virginia, and afterward had charge of the military hospital at Staunton, Virginia, until the war ended. He remained and practised at Staunton after the war, and was for several years superintendent of the lunatic asylum at that place. His contributions to medical literature include papers on potassium bromide, chloral hydrate, the use of chloroform in obstetrical practice, and a “Report upon Advance in Therapeutics,” which was printed in the Transactions of the Virginia Medical Society.
 Links: a. Hospital b. Potassium bromide c. United States Navy d. University of Pennsylvania
[A]: d


[Q]: Question: Was Lizbeth Webb older than Ginger Rogers the year Hughes appeared alongside the ladies in Carissima? Passage:After that he studied at the Royal Academy of Music and Dramatic Art. He had an early break in 1948 appearing with Ginger Rogers and Lizbeth Webb in Carissima, a West End musical. In 1951 he appeared on Henry Hall's "Guest Night". He was introduced by Hall as "the young Welsh tenor", as his stage name "David Hughes" which was his father's Christian names was typically Welsh. He appeared often in the 1950s on television and radio. These shows included Presenting David Hughes, Sunday Night at the London Palladium and 2 series of his own show Make Mine Music (1959). In 1954, while touring Australia, he arranged for his fiancée Anne Sullivan to join him there, and were married. He appeared in the stage show Summer Song in 1956, a biographical musical about Antonín Dvořák's visit to the United States. Sally Ann Howes was the female lead. In 1956 he had his only hit in the UK Singles Chart, "By The Fountains of Rome". The composer was Mátyás Seiber and the lyrics by Norman Newell, who also wrote hits for Ken Dodd ("Promises", 1966), Shirley Bassey ("Never Never Never", 1973) and Matt Monro ("Portrait of My Love", 1960).
 Links: a. Lizbeth Webb b. Marriage c. Mátyás Seiber d. Norman Newell
[A]:
a