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]: 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]: Eve found that the plants in the greenhouse thrived through the frost while the ones in the garden died, because the _ was colder. (A) greenhouse (B) garden
[A]: B

[Q]: The people wanted answers from the owner, rather than the public relations specialist because the _ had no responsibility in the business. (A) owner (B) specialist
[A]:
B