The revenue from selling x shirts is r(x) = 15x.The cost of buying x shirts is c(x) = 7x + 20.The profit from selling x shirts is p(x) = r(x) – c(x).What is p(x)? A. p(x) = 22x – 20 B. p(x) = 22x + 20 C. p(x) = 8x – 20 D. p(x) = 8x + 20