Final answer:
The maximum gain for a short call is the premium received, the maximum loss is unlimited, and the breakeven point is the strike price plus the premium.
Step-by-step explanation:
When selling a short call, the maximum gain is capped at the premium received from selling the call. This occurs when the stock price is below the strike price of the call option at expiration.
The maximum loss for a short call is unlimited because the stock price can rise infinitely. The loss is determined by the difference between the strike price and the stock price at expiration.
The breakeven point for a short call can be calculated by adding the strike price to the premium received from selling the call. Any stock price above the breakeven point would result in a loss.