24 POINTS!!!!!!!!!!!!!!
Which of the lists below contains UNLIKE (not like) terms?
A. 2x , -3x , -x , 0.01 x
B. x , 5x2 , 99 x y , 9
C. -x , x , 4x , 0.2 x , (1/4) x
D. - 2 , 7 , 4 , 89