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".

[EX Q]: Mailing a letter was easy for Kevin but not Brett because _ had a post office near his house. (A) Kevin (B) Brett
[EX A]: A

[EX Q]: Lawrence decided he must be a failure to Derrick since _ was the only one cheering. (A) Lawrence (B) Derrick
[EX A]: A

[EX Q]: Nelson was having trouble paying their mortgage but not Eric because _ had their hours cut at work. (A) Nelson (B) Eric
[EX A]:
A