Which of the following should cause the employee to examine a check more closely or call a supervisor?

A) A check number under 300 with perforated edges and a customer who dashes off the signature

B) A customer who buys expensive items, complains about the service and does not ask if there is a minimum required to pay by check

C) A check on which the transit number in the top right corner matches the electronically encoded number at the bottom of the check

D) A check number under 200 with smooth edges and a customer who signs the check slowly and with great care.