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]: It was Tanya's turn to clean the bathtub and Natalie's turn to clean the sink. _ was obligated to clean the bathtub. (A) Tanya (B) Natalie
[A]: A


[Q]: The carpenter wanted to build a wall, but he didn't have enough bricks. He built a water well instead because the _ required too many bricks. (A) water well (B) wall
[A]: B


[Q]: Steven helped Hunter to develop a training regimen, because _ was more inexperienced in the skill. (A) Steven (B) Hunter
[A]:
B