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]: Nick was given a dose of medication by Matthew because he had a fever. _ checked on him later. (A) Nick (B) Matthew
[EX A]: B

[EX Q]: Brett gave Christopher money to buy some new jeans; then _ asked for more money for a matching shirt. (A) Brett (B) Christopher
[EX A]: B

[EX Q]: The car's tires were unable to navigate the driveway of the property, thanks to the _ being too muddy. (A) driveway (B) tires
[EX A]:
A