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]: John cleaned his new car with a damp towel and this got the _ very dirty. (A) towel (B) car
[A]: A


[Q]: The man worked for hours to clean the carpet with his vacuum, but the _ didn't work. (A) carpet (B) vacuum
[A]: B


[Q]: She put glue on the paper, but not on the cardboard, because the _ was meant to be attached. (A) paper (B) cardboard
[A]:
A