instruction:
You are given a paragraph (Passage), a question (Question) and two answer options (Option1 and Option2). Your task is to find the correct answer (and return the string of the correct option, not option1/2) for the given question from the given options and based on the given passage. Answer of the question can be found directly from the passage.
question:
Passage: I needed to write a school report on tigers , and I decided to visit the library to find a book to use in my research . When I entered the library , I saw hundreds of books on many different shelves and was not sure where to find books on tigers . I asked a librarian for help finding books on tigers . she asked me . I told her I wanted facts and real information so I can write a report . She walked over to a group of shelves labeled Nonfiction and told me that these books all had true facts and pictures , rather than being imaginary stories . Using these codes , all the books on tigers would be in the same place and would be very close to books about other animals . She looked up the Dewey Decimal System code for tigers and wrote it down for me . Walking through the shelves with my code , I saw that the numbers on the spines of the books start at zero and keep getting bigger and bigger . There I saw books about lions , cheetahs , and finally tigers . I found a book that looked like it would be helpful for my report and brought it back to the librarian . She asked me for my library card , and after I handed it to her , she scanned it with her computer . Now the book was checked out in my name so that the library would know who has the book . She handed me the book and told me that I needed to bring it back to the library in two weeks . If I did n't bring it back , I would have to pay a fine for every day I kept it , because other people might want to read the book too . Question: What was the search system? Option1: Dewey Decimal System Option2: Morse code
answer:
Dewey Decimal System


question:
Passage: My friend and I went to the mall to shop for clothes . We first went to my favorite store , Forever 21 . We tried on a few dresses , blue ones , red ones , and black ones . \ nWe then tried on some blouses . I like the looser-fitting ones , and my friend prefers the tighter-fitting ones . I tried on a black and white polka-dotted blouse , and a blue and green striped blouse . \ nMy friend tried on a plain blue blouse , and a black blouse with elephants on it . She decided to buy the shirt with the elephants . \ nWe went to the cash register , and put our clothing on the counter . \ nMy friend gave her credit card to the cashier , and told me to count the dress as my birthday present . Question: What did the cashier scan? Option1: clothing Option2: food
answer:
clothing


question:
Passage: Dad thought the yard looked empty and the sun was making the house too warm in the afternoon . He decided to go out and buy a tree . He got his truck out of the garage and asked his son to come along to help him pick out a nice tree .  They parked in the parking lot , and got out of the truck , and saw many trees . The da asked his son , which kind of tree do you think would be best ? His son said , a nice big tree that will help fill the yard and block the wall of our house from the sun .  The boy walked up and down the rows of trees and found one he liked . His dad asked the worker to load the tree into the truck and paid for the tree inside the store . The dad and his son drove out of the parking lot and went home feeling happy .  The boy 's dad said , " Now when we get home I can teach you how to plant a tree ! " Question: When did they pick out the tree? Option1: When they got to the store Option2: before leaving the house
answer:

When they got to the store