TASK DEFINITION: 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.
PROBLEM: Doughnuts contain a lot of fat whereas peas do not because the _ are very unhealthy.

SOLUTION: doughnuts

PROBLEM: Jenna added chlorine gradually to her pool, because she wanted to make sure that the _ was making it cleaner.

SOLUTION: chlorine

PROBLEM: It's always better to sleep on a bed with a mattress instead of sleeping on the floor, because the _ is comfortable.

SOLUTION:
bed