Answer: The purchaser of a put option

In an option contract, the buyer of a put option acquires the right to sell the underlying asset at the agreed exercise price. This is distinct from a call option, where the buyer has the right to purchase the underlying asset. The seller (or writer) of a put option, however, assumes the obligation to buy the underlying asset if the buyer exercises the option. Thus, the correct answer is **B**, as the buyer of a put option holds the right to sell the underlying asset.

Author: LeetQuiz Editorial Team