Passage: I needed a book to read with a young relative of mine and decided to borrow it from the library rather than buy it . The local library is only a few blocks away to I walked there . I am familiar with the computers and the process for looking up to see if a book is available and where it is located on the shelf . The book was located in the proper location on the shelf . I selected the book and went to the counter to check it out . There were a few people in line ahead of me , but the wait was short . After scanning my library card and then the book the librarian asked if I needed a plastic bag to keep the book dry as it had started raining . I left with my book . Question: When did they decline a bag as they had a waterproof backpack? Option1: When librarian asked if person needed the bag Option2: before checkout
When librarian asked if person needed the bag