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 horse ran faster on the track than in the field because the _ was more slippery.
[A]: field


[Q]: The obnoxious child likes to play with video games more than educational toys. _ are more serious.
[A]: educational toys


[Q]: The old ripped document paper was replaced with microfilm because _ was very durable .
[A]:
microfilm