Answer:
A firm in this market produces where P > MC ⇒ MONOPOLY, in perfect competition markets, firms produce where P = MC
A firm in this market may earn long-run economic profits ⇒ MONOPOLY, on perfect competition markets firms cannot earn economic profit in the long run
A firm in this market has no market power ⇒ PERFECT COMPETITION
A firm in this market has no competitors ⇒ MONOPOLY (this is the definition of a monopoly)
A firm in this market cannot earn long-run economic profits ⇒ PERFECT COMPETITION
A firm in this market has significant market power ⇒ MONOPOLY, since the firm is the only supplier, it has a lot of bargaining power
A firm in this market is one of many small competitors ⇒ PERFECT COMPETITION
A firm in this market produces where P = MC ⇒ PERFECT COMPETITION