Given the task definition and input, reply with output. You are given a paragraph (Passage), a question (Question) and two answer options (Option1 and Option2). Your task is to choose the correct answer to the question based on the passage. Answer of the question cannot be found directly from the passage, it is indirectly indicated in the passage. Do not answer with words other than the two options, and do not answer with option titles(e.g. "option1" or "1" are not acceptable answers.)

Passage: A couple weeks ago , I had to travel out to Wisconsin to be with family . I have not flown domestic in a long time , so was not used to paying for checked baggage . I did n't want to pay the extra fees , so I looked up the carry on size and went out and bought a new suitcase that was small enough to carry on . It was black with orange polka dots , which is not usually my style , but it was on sale and fit the dimensions I needed . I laid the suitcase on my bed and began to sort through the clothes I needed : some underwear , socks , shirts , pants , pajamas , a dress , and some dress shoes . I folded all the clothes neatly and began arranging them inside my suitcase . The expansion on the suitcase made it so it zippered and closed easily , and I was all packed and ready to go . Question: when will the suitcase expand? Option1: when it starts to reach its carrying capacity Option2: when they fold clothes inside
when it starts to reach its carrying capacity