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.

Kirk had hurt his leg muscle at the gym and he treated it with epsom salt while avoiding balm, because he thought the _ might make it worse.
balm

The canvas with oil paint on it was left out longer than the one with acrylic paint as the _ took shorter to dry.
acrylic

Paul preferred washing his hair with water and not shampoo because _ left no odor.

water