A. enjoys eavesdropping.
B. is untrustworthy.
C. eavesdrops and learns correct information.
D. doesn't care to determine whether what he hears is true.
The answer would be C. eavesdrops and learns correct information. Borachio is a friend of the character Don John and would help him to have a plan on how to trick Claudio for him to think Hero is then unfaithful.
