Fact Pattern 24-1 Ruth Takes Her Car to Service Center

Fact Pattern 24-1 Ruth takes her car to Service Center, which repairs the car and bills her for $500. She writes out a check drawn on Tempo Bank, but later, believing that Service Center did not fix the car properly, issues a stop-payment order.
Refer to Fact Pattern 24-1. Tempo

A) is liable to Service Center for the amount of the check.
B) must stop payment if the bank has a reasonable time to act.
C) need not follow Ruth's order because it was issued after the check.
D) need not follow Ruth's order unless the check was certified.