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]: Peggy filled the bathtub with hot water and bubbles but not salts, because the _ smelled awful.
[A]: salts


[Q]: They had a feeling either the bookcase or the clock would fall first. The _ was unstable.
[A]: clock


[Q]: Grace was nervous about giving a public speech, but felt courageous after reading about others with the same problem, and now knew feeling _ could be changeable.
[A]:
nervous