Bob Took a Check Written by Jack to Jack's Bank

Multiple Choice

Bob took a check written by Jack to Jack's bank to be certified.The bank stamped "Certified" on it and gave it back to Bob.What consequence?

A) Bob can only demand the money from Jack.
B) The bank is now primarily liable on the check.
C) The bank would have to pay if Jack doesn't.
D) Bob would have to pay if the bank doesn't.