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 divorce upset Katrina more than Natalie as _ didn't care for the person their mother had married. (A) Katrina (B) Natalie
[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]: Kayla had children of her own, but Laura has a foster child. It is more likely _ was infertile. (A) Kayla (B) Laura
[EX A]:
B