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.)
Q: Passage: My friend gave me a ride up to the driving school in time for my lesson . The instructor was waiting beside the special car they use for driving lessons . It has a brake pedal on the passenger side of the car where the instructor rides , in case he needs to stop you from hitting something . I got inside and went down the ten point pre-driving inspection list I had memorized , with things like checking to make sure the car seat and mirrors are properly adjusted for my size . It was parked at the curb so I checked traffic , then pulled out into the flow of traffic on my left . The instructor told me where to turn , and which way to go . I concentrated on remembering to be safe , to watch the traffic around me , and to use my turn signals and mirrors wisely . At the end of the lesson , we pulled up in front of the drivers school building and the instructor helped me with directions to parallel park the car back where it had been when we left . He told me what I had done right , and wrong , and how I could improve , before we shook hands and I called my friend to come and take me home . Question: They turned what and started the car? Option1: the key. Option2: the signal
A: 
the key.