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]: The man wrote letters in the Army, but didn't send packages. That's because it is expensive to send _ . (A) letters (B) packages
[EX A]: B

[EX Q]: Rachel paid Lindsey to remove the junk from their house, because _ was prepared to deal with it. (A) Rachel (B) Lindsey
[EX A]: B

[EX Q]: Katrina couldn't even use a search engine, while Betty was an expert with computers. _ never needed to ask for help. (A) Katrina (B) Betty
[EX A]:
B