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".

Justin had heard that stir fry food was a great way to eat more vegetables, which Kevin struggled with. _ found a recipe and thought it sounded delicious. (A) Justin (B) Kevin
A

Samuel recommended a protein rich diet for Lawrence to recover stamina because _ is his doctor. (A) Samuel (B) Lawrence
A

Erin was more concerned about an infection than Katrina because _ had a robust immune system. (A) Erin (B) Katrina

B