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".

Nick asked Christopher how to focus a camera, since _ had never been able to get the hang of that. (A) Nick (B) Christopher
A

The oats that I had at the restaurant were better than my bananas, because the _ were delicious. (A) oats (B) bananas
A

Since Leslie slept well last night and Benjamin had no sleep, _ was quite refreshed in the morning. (A) Leslie (B) Benjamin
A