You are given a paragraph (Passage), a question (Question) and two answer options (Option1 and Option2). Your task is to find the correct answer (and return the string of the correct option, not option1/2) for the given question from the given options and based on the given passage. Answer of the question can be found directly from the passage.

Passage: I used to tell stories to my nephews when they were younger . Every time I visited them , they would love for me to sit down and tell them . One day , it was just before bed and I wanted to tell them a bedtime story . I began to tell a story about a prince and a magical frog . I tried to make it funny , and they laughed and laughed because they thought it was so silly . I used funny expressions in order to make it even funnier . Sometimes I asked them what they wanted to have happen in the story . They would sometimes come up with very silly ideas . We had so very much fun . Question: What did they use in the story? Option1: funny expressions Option2: a book
funny expressions