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]: As such a talented artist, Laura had much to offer Sarah in learning to paint, and _ was eager to teach. (A) Laura (B) Sarah
[A]: A


[Q]: It was easier to teach the students to configure the server than the router because the _ was simple. (A) server (B) router
[A]: A


[Q]: Christopher was ahead of Steven in the line to use the rope swing, because _ got there first. (A) Christopher (B) Steven
[A]:
A