Seth Takes His Watch to Wally's Watch Repair to Have

Seth takes his watch to Wally's Watch Repair to have it fixed.When Seth gets his watch back,the crystal,although perfect when it was brought in,is now cracked.Which of the following is correct?

A) This was a mutual benefit bailment.
B) This was a bailment for the sole benefit of the bailee.
C) This was a bailment for the sole benefit of the bailor.
D) This was an implied bailment.
E) This was a business transaction that would not be considered a bailment.