You will be given a definition of a task first, then some input of the task.
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: Tom needed to go to work so he went into his car . Unfortunately , his car would not start . He needed to get to his work before he is late . He then looked online to find a taxi . He called them and they came . He was ecstatic but the taxi driver had two other passengers in the car . Tom had to wait . The cab driver drove the two other passengers to their destination without a problem . By that point , his job was about 10 minutes away . Suddenly the taxi driver realized he was low on gas . He then went to the gas station and tom was getting more and more impatient . He told the driver to hurry it up and not go to the gas station . Question: When did they get worried? Option1: when the driver was low on gas Option2: before starting the car
Output:
when the driver was low on gas