Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Passage: Yesterday I boiled milk for my mom . Whenever she goes to work she asks me to do tasks for her so that when she comes home she does n't have to do it . Yesterday she wanted me to walk across the street to the store and buy some milk . My mom left me instructions how to boil the milk for her . I got a big pan and put it on the oven . I turned on the oven and made the pan hot by turning the dial to high . After a while the milk started to get hot , which I could see because it would move and I saw steam . When bubbles started appearing in the milk , I knew it was boiled and done . Question: When did they buy milk? Option1: after shopping Option2: Before they boiled it
Student:
Before they boiled it