In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".

[Q]: The lady's vacuum worked a lot better on the carpet than the broom, because the _ was powerful. (A) vacuum (B) broom
[A]: A


[Q]: School was really quite wonderful for Craig but not for Robert because _ was very lazy. (A) Craig (B) Robert
[A]: B


[Q]: The librarian removed the books from the shelves and put them into the cart. The _ were now mobile. (A) books (B) shelves
[A]:
A