Ricky Has Been Charged with Grand Theft for Stealing a $1,000

Ricky has been charged with grand theft for stealing a $1,000 diamond ring.The police investigator found the following:
· Mike claims he saw Ricky take the ring from a display case at a jewelry store;
· Nate, a clerk at the jewelry store, reported the ring missing two minutes after Ricky left the store;
· Owen, the owner of a pawn shop, claims Ricky tried to pawn a ring one hour after Nate reported it missing;
· Patty, Ricky's former girlfriend, claims she threw her engagement ring in Ricky's face when they broke up two years ago. What would provide the best corroboration for Mike's testimony?

A) Nate's testimony that the display case was empty after Ricky left the store.
B) Owen's testimony that Ricky tried to pawn a ring.
C) Patty's testimony that Mike was not present when she threw her engagement ring at Ricky.
D) Mike's testimony cannot be corroborated unless Ricky takes the stand and confesses.