Problem: The sight of blood made Erin faint, but not Samantha, which is why

My choice: Samantha would be good as a nurse.

Problem: Lawrence did not take a long time to recover from their cold but Ryan did. This was because

My choice: Ryan was a lot more unhealthy.

Problem: Mary asked Tanya when the roses may be in bloom, because

My choice: Mary did not know.

Problem: Volunteering at the animal shelter was a good opportunity for Aaron but not Robert because

My choice:
Robert was scared of dogs.