Problem: Christine 's ulcers were getting worse until Sarah came to help,

My choice: Sarah offered her soothing presence.

Problem: The doctor recommended cigars more than he did the cigarettes because the

My choice: cigarettes were more deadly.

Problem: Joel is more familiar with the Asian culture than Donald because

My choice: Joel lived in Asia for many years.

Problem: Jeffrey is a renowned pathologist, Ryan is a teacher therefore

My choice:
Ryan does not examine dead human bodies.