Problem Solving (PS) | The figure above represents a rectangular cake in a pan. The cake has

The figure above represents a rectangular cake in a pan. The cake has been sliced into 12 square pieces by 5 straight cuts, each cut extending from one side of the pan to the opposite side of the pan. What is the minimum number of additional such cuts needed to halve each of the 12 pieces if the pieces remain in the pan as shown?

(A) 2
(B) 3
(C) 4
(D) 6
(E)12