Read the paragraph. (1) As the head of postal services, Benjamin Franklin established a profitable mail delivery system in colonial America. (2) The adventurous Franklin traveled some 1,600 miles between postal offices to mark all possible direct routes. (3) He had riders transport mail day and night for faster more productive delivery. (4) He also created a simpler and more standard rating system so postmasters could consistently calculate the price of postage. Where should a comma be added? * A. after profitable in sentence 1 B. after possible in sentence 2 C. after faster in sentence 3 D. after simpler in sentence 4