The Energy Given Off by 300 Grams of an Alloy $\degree$

The energy given off by 300 grams of an alloy as it cools through 50 $\degree$ C raises the temperature of 300 grams of water from 30 $\degree$ C to 40 $\degree$ C. The specific heat of the alloy (in cal/g $\degree$ C˚) is:

A) 0.015
B) 0.10
C) 0.15
D) 0.20
E) 0.50