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]: Logan asked Brian to help him with the algebra for _ was easily passing the class. (A) Logan (B) Brian
[EX A]: B

[EX Q]: The man decided to pay for the groceries with a credit card, instead of a check because the _ is much slower to use. (A) credit card (B) check
[EX A]: B

[EX Q]: She tried to use the glue on her basement wall to seal the crack, but it failed because the _ was severe. (A) glue (B) crack
[EX A]:
B