Four polynomials are shown below:

A. 4 − 7x5 + x2
B. 5x3 + 5 − 3x4
C. 3x + 2x4 − x2 + 6
D. 3x3 − 5 + 2x5 + x
Which of the above polynomials is a 4th degree trinomial?

answers-
Polynomial A

Polynomial B

Polynomial C

Polynomial D