It is c because if its a past verb it would have past tense
Answer:
Salem witch trials, (June 1692–May 1693), in, a series of investigations and persecutions that caused 19 convicted “witches” to be hanged and many other suspects to be imprisoned in Salem Village in the Massachusetts Bay Colony, now Danvers, Massachusetts.
Explanation:
You need to manage your time well and put every spare second towards it