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]: Joseph was a neat freak and Robert wasn't, which means _ always kept his area nice and clean. (A) Joseph (B) Robert
[EX A]: A

[EX Q]: Justin boasted to Aaron that he was going to play hockey without wearing an athletic cup.  _ was dumbfounded. (A) Justin (B) Aaron
[EX A]: B

[EX Q]: Justin decided to take Steven 's place in the mountain expedition because _ was too tired. (A) Justin (B) Steven
[EX A]:
B