The Specific Heat of Water Is 4 $\circ$ CWhen 400 KJ of Heat Is Added to 12 Kg

The specific heat of water is 4.2 kJ/kg. ^$\circ$ C.When 400 kJ of heat is added to 12 kg of water at 2 ^$\circ$ C, its final temperature is

A) 5.9 ^$\circ$ C.
B) 7.9 ^$\circ$ C.
C) 11.7 ^$\circ$ C.
D) 17.9 ^$\circ$ C.