Please answer this with a explanation and your answer will be chosen as the Brainliest.

A gardener is installing fence around his garden. Let x represent the width of the garden, in feet. The perimeter of the garden is 8x + 8. Which expression represents the length of the garden?

a. 2x + 2
b. 3x + 4
c. 6x + 8
d. 8x + 8 - 2x