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]: The dad played catch with his son, but he had trouble throwing and hitting the ball. The _ was too much trouble.
[A]: hitting


[Q]: they had a pet tarantula that liked to climb the walls instead of the floor, because the _ were higher.
[A]: walls


[Q]: At the end of the collection game, there were more eggs than jacks found as the _ were covert.
[A]:
jacks