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]: The essay on microbiology was more interesting than the one written on statistics. _ must be an interesting subject.
[EX A]: microbiology

[EX Q]: They were unable to drive their road after seeing the police tape because the _ was up.
[EX A]: tape

[EX Q]: Alex tried to catch up with Mark with his bike but Mark's car was nowhere to find now. Because the _ is slower.
[EX A]:
bike