Answer: (d.)The bakery faces a flat demand curve.
Explanation:
The bakery faces a flat demand curve because a firm in a perfectly competitive market is a price taker and the demand curve for a firm is equal to the price the supply curve is a part of Marginal cost above Average variable cost , so the supply curve is upward sloping . The bakery is in the perfectly competitive market so it can earn positive, negative or zero economic profit in the short run and zero economic profit in the long run.