All of the following are theories that historians have come up with to explain what caused the salem witch hysteria except which one?

a. a division was being formed between successful and less successful citizens in salem due to economic prosperity.
b. it was caused by a desire to distract citizens from conflicts with native americans on the frontier.
c. there was competition between two clans that were dividing the community.
d. paranoia developed over the forced conversion of quakers.