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]: She prefers to use laptop over desktop PC, because the _ is more mobile for her needs.
[A]: laptop


[Q]: Mary brought a ball to the field to play soccer, but she couldn't because the _ was flat.
[A]: ball


[Q]: Mark cooked a cake and a salad for his guests, he used lettuce for the _ .
[A]:
salad