Resolution.
Explanation:
The exposition is the beginning and introduction of all elements in the story, e.g., "Romeo and Juliet's families are enemies, but Romeo and Juliet meet at a party and like each other."
The rising action is when some events start complicating things and revealing the conflict in a plot, e.g., "Romeo visits Juliet on a balcony one night, and then she sends a message to him through her nurse. They meet and secretly wed without their families' knowledge. Romeo kills Juliet's cousin Tybalt, and he is exiled. Juliet's father orders her to marry someone else. Juliet fakes her death, sending a message to Romeo to let him know, but he hears of her death and doesn't get the message."
The rising action that triggered the conflict of the story and led to some other complicated events was that first visit to Juliet in her balcony.
The falling action is when the events and the conflict start falling into pieces. It is usually the preface of the resolution and happens after the climax, e.g., "After their deaths (climax), the two families mourn Romeo and Juliet."
The resolution of a plot is the conclusion of the story and its conflict. All the events in the story reach an outcome, e.g., "Romeo and Juliet's deaths have ended their families' feud and there is peace in Verona."
The second, third and fourth ones do not match the definition while the first one does. Therefore, 'resolution' is the correct answer.
