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 bits of sand in clam chowder bothered Justin, but it didn't bother Brian because _ didn't understand that the sand means that it's fresh. (A) Justin (B) Brian
[EX A]: A

[EX Q]: The soccer player chose to replace his shoes, but didn't get any new shorts. The _ he had are old. (A) shoes (B) shorts
[EX A]: A

[EX Q]: The dog ran past Kayla and up to Rebecca because _ had a dog treat. (A) Kayla (B) Rebecca
[EX A]:
B