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]: Erin asked Sarah for help with hanging the new bathroom mirror because _ is tall enough to reach. (A) Erin (B) Sarah
[EX A]: B

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

[EX Q]: We went inside a store to cool off in the summer, and my friend wanted a chair but it wouldn't fit through the door since the _ was long. (A) chair (B) door
[EX A]:
A