Which of the following expressions is equivalent to 4(2k + 7) – 5k(6k-2) ?
A 30k2 + 2k + 28
B. -30k2 – 2k + 28
C. 30k2 + 18k + 28
D. -30k2 + 18k + 28

(the 2s next to the 30s mean to the second power)