In a felony case, the purpose of a grand jury is to a. decide if the offender should be tried by a jury. b. judge the merits of the case against the state constitution. c. decide if the evidence warrants prosecution. d. judge on a civil indictment.

The answer is (decide if the offender should be tried by jury).

Explanation:

 C. decide if the evidence warrants prosecution.

Explanation:  

In case of a felony charge, the civil officer of presiding officer will decide if the evidence is thorough and clear enough to execute a warrant on the felon. Then, the jury orders the investigators and prosecutors to prosecute the felon, often for a few weeks. The answer is C.

the telephone is the answer