Subtract:

(5x-3t-7)-(x-2t-3)(5x−3t−7)−(x−2t−3)


A. 4x-t-44x−t−4

B. 4x+t-104x+t−10

C. 4x-5t-44x−5t−4

D. 4x-5t-104x−5t−10