Selling the call obligates you to sell stock at strike price A if the option is assigned.
When running this strategy, you want the call you sell to expire worthless. That’s why most investors sell out-of-the-money options.
This strategy has a low profit potential if the stock remains below strike A at expiration, but unlimited potential risk if the stock goes up. The reason some traders run this strategy is that there is a high probability for success when selling very out-of-the-money options. If the market moves against you, then you must have a stop-loss plan in place. Keep a watchful eye on this strategy as it unfolds.