What do we know about the sources of the witchcraft hysteria in Salem?

What do we know about the sources of the witchcraft hysteria in Salem?

a. They are known to have been primarily economic.
b. They reflected the community’s underlying resistance to the teachings of Calvinism.
c. They lay in the community’s dislike of English authority.
d. They are a subject of debate among historians.
e. They may have been related to the presence of real witches.

ANSWER
D