Task: Question Answering
Input (English): Passage: I put ta box of fruit snacks , which was the last item on my grocery list , into my shopping cart . I pushed my cart to the front of the store where they keep the registers . I looked at the different lines and chose the one with the fewest people waiting . When there was only one person in front of me , I put the checkout lane divider on the belt so that I could start to put my grocery items on the belt . When the person in front of me paid and left , the cashier greeted me and asked if I had found everything I needed . I pushed my cart in front of me and waited by the cashier as she rang up my items . When she was done , she said my total was $ 101.99 , and asked how I would be paying today . I said I would be paying with my credit card . I handed my card and my license to the cashier who made sure that the names and signatures matched . Then she gave me back my cards , and I slid my credit card into the chip reader and waited . When the machine beeped , the cashier said I could take my credit card out . Then she said I needed to sign my name . I signed my name using the stylus pen and pressed " OK " on the credit card reader . The reader said transaction completed . I grabbed my cart which was filled with my grocery bags and left the store . Question: When did they take out their credit card, as well as their driver's license? Option1: While checking out Option2: When the transaction completed
Output (English): While checking out