Solve the problem. Given is a graph of a portion of the postage function, which depicts the cost (in cents) of mailing a letter, p, versus the weight (in ounces) of the letter, x. Find each limit, if it exists. lim lim x3- PDXX x_3+ P(x), x 3 p(x) 23- 99; 77; does not exist B 77: 99: 77 77; 99; does not exist D 77; 77: 77