josefina is the only seller of sopapillas in town. last week, she sold 200 sopapillas, and the marginal revenue of the 200th sopapilla was $1.50 and the marginal cost was $1.75. is josefina maximizing her profit? a) yes, josefina is maximizing her profit. b) no, josefina is producing less than the optimal quantity. c) no, josefina is producing more than the optimal quantity. d) no, josefina is not maximizing her profit despite producing the optimal quantity.