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]: Rachel has way smaller muscles than Tanya because _ always worked out every day of the week. (A) Rachel (B) Tanya
[EX A]: B

[EX Q]: The medical exam for the broken arm was longer than the exam on the heart because the _ was a serious problem. (A) heart (B) arm
[EX A]: B

[EX Q]: After the doctor said to quit smoking to avoid lung disease, Nelson obeyed while Kenneth kept smoking. _ was indifferent. (A) Nelson (B) Kenneth
[EX A]:
B