A product is the result of multiplication. A quotient is the result of division. So you're trying to find the quotient of a number (x) and 5 that equals 8.
Try plugging in the answers. x/5=8
A. x=4 4/5=8 (Incorrect, 4 divided by 5 is 0.8)
B. x=8 8/5=8 (Incorrect, 8 divided by 5 is 1.6)
C. x=40 40/5=8 (Correct, 40 divided by 5 is 8)
D. x=80 80/5=8 (Incorrect, 80 divided by 5 is 16)
So your answer is C. 40 The quotient of 40 and 5 is 8.