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]: Erin had a lot of earwax unlike Rebecca so _ had a difficult time hearing things. (A) Erin (B) Rebecca
[A]: A


[Q]: Kevin valued their friendship with their siblings but Jason didn't,  so _ visited their sibling's home often. (A) Kevin (B) Jason
[A]: A


[Q]: The dour ending of the story contrasted with the happy vibe of the introduction.  The _ was just so joyful. (A) ending (B) introduction
[A]:
B