The answer is C. Adena and Hopewell.
The various cultures collectively termed Mound Builders were inhabitants of North America who, during a 5,000-year period, constructed various styles of earthen mounds for religious and ceremonial, burial, and elite residential purposes. These included the Pre-Columbian cultures of the Archaic period; Woodland period (Adena and Hopewell cultures)
I believe the answer is C. They were a distraction from a large budget deficit that the leaders of Salem had recently incurred.
Answer:
I believe that "a biography of John F. Kennedy" and "a letter written by Thomas Jefferson to the British monarch" go in primary and the other two go in secondary.