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]: Jeffrey took the time to caulk their windows but Robert didn't bother. _ saw their electric bill decrease. (A) Jeffrey (B) Robert
[A]: A


[Q]: The horse ran up to Rebecca but past Christine, because _ had sugar cubes in their pocket. (A) Rebecca (B) Christine
[A]:
A