The answer is b...........................
Answer:
The plague is thought to have originated in Asia over 2,000 years ago and was likely spread by trading ships, though recent research has indicated the pathogen responsible for the Black Death may have existed in Europe as early as 3000 B.C.
Explanation:
B.
The historian is looking to study the effects of interaction of a culture with another one.
1. The answer is 1996 because the 20th century starts January 1, 1901 to December 31, 2000