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.

[EX Q]: Question: How deep were their heavy infantry formations normally? Passage:Having recovered from their losses at Trebia (218 BC) and Lake Trasimene (217 BC), the Romans decided to engage Hannibal at Cannae, with approximately 86,000 Roman and allied troops. They massed their heavy infantry in a deeper formation than usual, while Hannibal used the double envelopment tactic and surrounded his enemy, trapping the majority of the Roman army, who were then slaughtered. The loss of life on the Roman side was one of the most lethal single day's fighting in history; Adrian Goldsworthy equates the death toll at Cannae to "the massed slaughter of the British Army on the first day of the Somme offensive in 1916." Only about 15,000 Romans, most of whom were from the garrisons of the camps and had not taken part in the battle, escaped death. Following the defeat, Capua and several other Italian city-states defected from the Roman Republic to Carthage.
 Links: a. Cannae b. Adrian Goldsworthy c. Heavy infantry d. City-state
[EX A]: c

[EX 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
[EX A]: c

[EX Q]: Question: In what city was the person born who had a long feud with FDR? Passage:Roosevelt came to office in 1929 as a reform Democrat, but with no overall plan. He tackled official corruption by dismissing Smith's cronies and renamed the New York Public Service Commission. He addressed New York's growing need for power through the development of hydroelectricity on the St. Lawrence River. He reformed the state's prison administration and built a new state prison at Attica. He had a long feud with Robert Moses, the state's most powerful public servant, whom he removed as Secretary of State but kept on as Parks Commissioner and head of urban planning. Moses was replaced with the Bronx's Democratic Boss Edward J. Flynn. When the Wall Street crash in October 1929 ushered in the Great Depression, Roosevelt started a relief system that later became the model for the New Deal's Federal Emergency Relief Administration (FERA). Roosevelt followed President Herbert Hoover's advice and asked the state legislature for $20 million in relief funds, which he spent mainly on public works in the hope of stimulating demand and providing employment. Aid to the unemployed, he said, "must be extended by Government, not as a matter of charity, but as a matter of social duty." In his first term, Roosevelt famously said, "The United States Constitution has proved itself the most marvelously elastic compilation of rules of government ever written." He was referring to the belief he had that the Federal government would need to use more power in order to bring the country out of the Depression.
 Links: a. Attica (town), New York b. Robert Moses c. Federal Emergency Relief Administration d. Herbert Hoover
[EX A]:
b