You need to answer a given question containing a blank (_). Your answer must be one of the two objects mentioned in the question, for example "trophy" and "suitcase". Your answer must not contain a word that is not present in the question. Please don't use articles (e.g., the, a) before the answer.

[Q]: While taking classes at the college, Sam bought the textbooks she needed and returned the notebook she didn't. The _ were necessary.
[A]: textbooks


[Q]: Mike chose to buy his jeans at the store rather than the outlet, because _ was cheaper .
[A]: store


[Q]: The physics paper was pretty simple but the history paper was not as the _ paper had easier questions.
[A]:
physics