John and Jennifer Are Engaged to Be Married

John and Jennifer are engaged to be married.Shortly before the wedding,John gets cold feet and calls the whole thing off.What happens to the ring?

A) Jennifer gets to keep the ring under both the fault rule and objective rule.
B) Jennifer must return the ring under the fault rule,but would get to keep the ring under the objective rule.
C) Jennifer gets to keep the ring under the fault rule,but must return the rule under the objective rule.
D) Jennifer must return the ring under both the fault rule and the objective rule.