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.

[EX Q]: 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
[EX A]: Dewey Decimal System

[EX Q]: Passage: Last Saturday , a friend who was visiting my house commented that it looked like I had n't tended to my lawn in a while . I realized she was right -- the weeds were growing pretty tall , and I had n't cut the grass in weeks . I decided it was time to mow the lawn the next day . I rolled the lawnmower over to the lawn , and then turned the lawnmower on . It started roaring , signaling that it was on and ready to cut grass . I mowed the grass in neat rows , starting on one side of my lawn and mowing all the way to the other side . After I inspected my work , I decided I was happy with it . The grass looked much neater . I turned off the lawnmower and returned it to the garage . Question: What did they make sure not to miss? Option1: the sunset Option2: tall patches of grass
[EX A]: tall patches of grass

[EX Q]: Passage: I wrote a letter to a friend the other day , and then had to mail it . Before I could send it I needed a few things . I needed an envelope , to put the letter in . I went to post office and bought the right size envelope for a letter and the right type of stamp . I wrote my name and address in one corner . I wrote the name and address of the person I was sending the letter too in the middle . I made sure the letter was sealed in by the sticky glue of the envelope . I put the stamp on the outside of the envelope , on the corner . I took my envelope and walked to the out going mail box at the post office . I left the post office and went home . Question: Where did they drop the letter at the post office? Option1: out going mailbox Option2: their home mailbox
[EX A]:
out going mailbox