单选题
编号：2690397
1. A firm's average revenue is greater than its average variable cost and less than its average total cost. If the firm does not expect price to change, the firm should:
- A.Shut down in the short run and in the long run.
- B.Shut down in the short run but operate in the long run.
- C.Operate in the short run but shut down in the long run.