Which polynomial represents the sum below?

(x2 + 2x + 2) + (-2x6 - 3x5 - x2 + 6x)

A. 2x6 + 3x5 - x2 + 4x - 2
B. -2x6 - 3x5 - 4x + 2
C. -2x6 - 3x5 + 8x + 2
D. -3x6 - 3x5 + x2 - 4x