Fact Pattern 19-1 Viva Takes Her Car to We-Can-Fix-It,Inc. ,Which Repairs the Car

Fact Pattern 19-1
Viva takes her car to We-Can-Fix-It,Inc. ,which repairs the car and bills her for $500.She writes a check drawn on Xenon Bank,but later,believing that We-Can-Fix-It did not repair the car properly,issues a stop-payment order.
-Refer to Fact Pattern 19-1.Xenon Bank

A) is liable to We-Can-Fix-It for the amount of the check.
B) must stop payment if the bank has a reasonable time to act.
C) need not stop payment unless Viva had a valid reason to act.
D) need not follow Viva's order unless the check was certified.