When 90 KJ Is Removed from a 2-Kg Copper Bar $\degree$

Multiple Choice

When 90 kJ is removed from a 2-kg copper bar, its temperature drops from 200 $\degree$ C to 85 $\degree$ C. The specific heat of copper is

A) 0.16 kJ/kg $\degree$ C.
B) 0.19 kJ/kg $\degree$ C.
C) 0.23 kJ/kg $\degree$ C.
D) 0.39 kJ/kg $\degree$ C.