This is an ICC practice exam question:

A 1512-VA, 120 v cord and plug connected room air-conidtion will require what size dedicated branc circuit in amperes?

A) 15
B) 20
C) 25
D) 30

The answer is B.

1512/120 = 12.6....Why is not the answer 15 amps?

thanks as always for your help!