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: To ensure a healthy smile, Jason replaced with toothbrush with an electric brush. The _ requires more effort.

SOLUTION: toothbrush

PROBLEM: Steve got more bites on his legs when he wore shorts than pants because the _ exposed his legs.

SOLUTION: shorts

PROBLEM: Sam poured the essential oils into the carrier oils until the _ was fully saturated.

SOLUTION:
carrier oils