Buying a call option gives the investor the right to purchase the stock at a fixed price (strike price). If the stock’s price rises significantly, the value of the call option increases, allowing the investor to profit.

B is correct because a call option profits directly from a stock price increase.

A is incorrect because a put option profits from a stock price decline.

C and D are incorrect because selling options limits profit potential and exposes the seller to significant risk if the stock moves unfavorably.