Answer :
The answer should be D. If you plug it in,
-11 x 2 = -22 24 x 3 = 72
72 -22 = 50
4 x -11 = -44 2 x 24 = 48
48 -44 = 4
-11 x 2 = -22 24 x 3 = 72
72 -22 = 50
4 x -11 = -44 2 x 24 = 48
48 -44 = 4