[Need Explanation]

Consider these total costs (T C) and total revenue (TR) curves for Sam, an entrepreneur who sells photography services in a perfectly competitive market. Q (events photographed per month) How much is Sam's profit if she photographs 8 events per month? A. $-1000 per month B. $1200 per month C. $0 per month D. $8000 per month E. $1000 per month A ping pong ball manufacturer faces a current market price of $0.1 5 per ball. At the firm's profitmaximizing level of production, its average variable cost is $0.16 per ball and its average total cost is $0.17 per ball. The firm should A. continue to operate indefinitely. B. shut down production immediately. 0. shut down production temporarily but start again when the fixed costs have been paid again. 0. continue to operate in the short run but exit as soon as possible