Which of the following is a nonlinear function?

A.
Input 1 2 3 4 5
Output 12 21 36 57 84

B.
Input 1 2 3 4 5
Output 8 10 12 14 16

C.
Input 1 2 3 4 5
Output 6 12 18 24 30

D.
Input 1 2 3 4 5
Output 8 16 24 32 40

D. Input 1 2 3 4 5 Output 8 16 24 32 40