How Many Calories Are Required to Change One Gram of 0

Multiple Choice

How many calories are required to change one gram of 0 $\degree$ C ice to 100 $\degree$ C steam? The latent heat of fusion is 80 cal/g and the latent heat of vaporization is 540 cal/g. The specific heat of water is 1.00 cal/g . K.

A) 100
B) 540
C) 620
D) 720
E) 900