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: The girl ate fries with her burger instead of an apple although the _ was healthier.

SOLUTION: apple

PROBLEM: The diseases were not able to be treated like the people's conditions because the _ were fatal.

SOLUTION: diseases

PROBLEM: The dogs responded to the shrill whistle but not the low horn, as the sound of the _ was in his hearing range.

SOLUTION:
whistle