TASK DEFINITION: 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".
PROBLEM: Rachel has way smaller muscles than Tanya because _ always worked out every day of the week. (A) Rachel (B) Tanya

SOLUTION: B

PROBLEM: William asked Jason to teach them how to play the guitar because _ wanted to become a musician. (A) William (B) Jason

SOLUTION: A

PROBLEM: Rachel offered to teach Monica to play the harmonica as _ was an expert at it. (A) Rachel (B) Monica

SOLUTION:
A