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]: She had a lower back pain but her headache was gone, so the _ problem was bothering her. (A) lower back (B) headache
[A]: A


[Q]: Joey was careful when he passed by the tack but he managed to scratch himself on the nail because the _ was sharp. (A) tack (B) nail
[A]: B


[Q]: Betty wasn't a successful businessman unlike Sarah because _ loved trying to up sell customers. (A) Betty (B) Sarah
[A]:
B