Civil magistrates in massachusetts set up a special court in 1692 to
try
a peter zenger for libel.
b try people accused of witchcraft.
c pass the half-way covenant.
d create the frame of government.

Option B.

Explanation:

Try people accused of witchcraft, is the right answer.

The Salem witch trials were a set of trials and pursuance of people arrested of witchcraft in colonial Massachusetts in the period between February 1692 to May 1693. The hearings started subsequent people had been arrested of witchcraft. One such example was the accused of an adolescent girl called Elizabeth Hubbard of age 17 years.

In these trials, a total of 200 people were arrested out of which 19 were found guilty and were killed by hanging. This witch hunt was the deadliest trial in the history of colonial North America.