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]: Nelson brought a list of stomach symptoms he'd experienced to Randy, but _ never looked at them. (A) Nelson (B) Randy
[A]: B

[Q]: Ian had a happy face while Ryan was angry. _ had just won the lottery for $3 million. (A) Ian (B) Ryan
[A]: A

[Q]: The sand and water in the fish tank were very dirty, so the _ needed to be scrubbed. (A) water (B) sand
[A]:
B