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]: The brutal boxing match was suitable for Christopher but not Samuel because _ did damage to his opponent. (A) Christopher (B) Samuel
[EX A]: A

[EX Q]: Aaron was less careful with his appearance than Ryan because _ did not work in a professional environment. (A) Aaron (B) Ryan
[EX A]: A

[EX Q]: Carrie usually borrowed tools from Jennifer because _ lacked very durable equipment for the tasks. (A) Carrie (B) Jennifer
[EX A]:
A