60 points! urgent! !
which of the following statements is true?
question 5 options:
a) the product of −2(−8x−3) is −16x+6.

b)the product of x^2(−4x^2+5x) is −4x^4−5x^3.

c)the product of (9x+1)(−4x+3) is −36x^2+27x+3.

d)the product of (−x+4)(x^2+3x−3) is −x^3+x^2+15x−12.