Question

Sarah felt very anxious after shaking hands with someone who looked like he had a cold, but washing her hands made her feel better.

Answer 1

Obsessive-compulsive disorder.

Step-by-step explanation:

Obsessive-compulsive disorder: In psychology, the term "obsessive-compulsive disorder" is determined as a mental disorder in which a person feels or experiences unwanted and recurring ideas, thoughts, and sensations which is referred as obsessions that generally makes the person driven to perform a specific task repeatedly and is referred as compulsions.