instruction:
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.
question:
they had a pet tarantula that liked to climb the walls instead of the floor, because the _ were higher.
answer:
walls


question:
David had to choose between a cold beer or a hot tea so he chose the _ since the day was warm.
answer:
beer


question:
Ice packs and heat packs can both be helpful for soothing sore muscles. The _ pack is most useful for increasing blood flow.
answer:

heat