11. [-/1 Points] DETAILS 0/100 Submissions Used If the unit selling price p(x) and the quantity supplied x of a certain product is given by p(x) = xe/* + 3, find the marginal revenue function R'(x). O ( 5 + x) x4e ]x O ( 6 + x)x5e7* + 3 O (6 + 7x)x5e7* + 3 O ( 5 + x) x4e 7x + 3 O (5 + 7x) x4e7x