pls help me :<

which of the following is equivalent to
(8x + 7)(5z - 4)

a) (8x)(5x) +(7) (-4)
b) (8x)(5x)+7(5x - 4)
c) (8x + 7)(5x) + (8x + 7)(-4)
d) (8x + 7)(5x) + (8x + 7)(4)​