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

[EX Q]: The living room was cleaner than the kitchen, because we spend more time in the the _ . (A) living room (B) kitchen
[EX A]: B

[EX Q]: The boy tried to store the guitar in the case but the _ was too big. (A) case (B) guitar
[EX A]:
B