Select the true statement about the graph of f(x) = -2x^3 + 6x^2 + 18x - 18.

Then I'm given four possible answers

A. (-1, -31) is a relative minimum and (3, 32) is a relative maximum

B. (3, 32) is a relative minimum and (-1, -31) is a relative maximum

C. (-1, -28) is a relative minimum and (3, 36) is a relative maximum

D. (3,36) is a relative minimum and (-1, -28) is a relative maximum

I believe it's C. I'm also thinking it could be D, if I got the numbers mixed up.

and also, this one has me stuck as well. I haven't the slightest clue what it's even asking.

Which of the following functions is neither odd nor even?

A. x^9 + 3x^7 + 6x

B. x^5 + 3x

C. 6x^2 - (x^2) + 3

D. x^2 + 3x + 3 + (x - 3)