Calculate the Change in Entropy of a Large Pail of Water

Multiple Choice

Calculate the change in entropy of a large pail of water after 200 J of energy is reversibly transferred to the water at 20 ^$\circ$ C.

A) -0.733 kJ.mol^-1
B) +0.683 kJ.mol^-1
C) -0.683 kJ.mol^-1
D) +0.733 kJ.mol^-1
E) -200 kJ.mol^-1