The ratio of an interior angle to its corresponding exterior angle of a regular polygon is 9 : 2. If number of sides in the polygon is n, then select the CORRECT option.

A

n is an even natural number

B

$$n^{2} - 10^{2}$$ is an odd natural number

C

$$n^{2} - n$$ is an odd natural number

D

$$n^{2} - 8^{2}$$ is an odd natural number