Task: Question Answering
Input (English): Passage: I decided to rent a movie so I made a trip to the movie rental store . I got in my car , started the car , and drove off . I arrived at the video rental store and parked my car . I smiled and said `` hello . '' I walked down the isles and thought about what type of movie I was in the mood to watch . As I walked down the isles , I looked at the movie boxes and read some titles . I decided that I was in the mood to watch a science fiction movie . I walked slowly down the isle and carefully read the titles and looked at the movie covers . I found a movie that I had been wanting to watch so I made up my mind quickly and got that movie . I walked to the cash register and was greeted again by the store clerk . I gave him my movie rental card and then he told me how much the cost was . I paid the clerk and he handed me the movie in a plastic bag . I thanked the clerk and walked out of the store . Question: When did the store clerk greet them? Option1: when he handed him a plastic bag Option2: while they approached the front desk
Output (English): while they approached the front desk