PLEASE PLEASE PLEASE HELP!!!!!! NEED HELP ASAP!!!!

If a polynomial
p(x) = x^4 + 4x^3 + 8x^2 + 20x + 15 + K

Can be written in the form
p(x) = (q(x))(x-2)

Where q(x) is a polynomial, what is the value of k?

A. -135

B. -120

C. 9

D. 24