Detailed Instructions: 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".
See one example below:
Problem: Katrina gave Christine a stuffed animal for their birthday, but _ already had this one. (A) Katrina (B) Christine
Solution: B
Explanation: Since the blank is someone who received the gift and already had a stuffed animal, the answer must be "Christine".

Problem: It was more likely for Samuel to have fish for dinner than Robert because _ ate a wide variety of foods. (A) Samuel (B) Robert
Solution:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A