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]: When Michael dropped his purple marble, Dennis laughed, so mother gave _ an angry look. (A) Michael (B) Dennis
[EX A]: 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 mouse got stuck in a hole while running with a wood in its mouth. The _ is small. (A) wood (B) hole
[EX A]:
B