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".

They spent their money on the whistle, instead of the stop watch. The track coach needed a _ . (A) whistle (B) stop watch
A

We moved out of the room to take the test in the hallway, as the _ made focusing difficult. (A) room (B) hallway
A

I moved the hedgehogs from their cages into the new holding pen.  The hedgehogs missed their old _ . (A) cages (B) pen

A