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.

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

[EX Q]: Susan made the decision of  getting in an Airplane instead of train to go to Miami because the _ travels slow.
[EX A]: train

[EX Q]: We decided to order diamonds for our new engagment rings instead of rubies, since the _ were attractive.
[EX A]:
diamonds