Answer:
The correct answer is - obsessive-compulsive disorder.
Explanation:
Obsessive-compulsive disorder is compulsive or repetitive behavior in an individual because of unreasonable fear or thoughts. It is a long-lasting chronic disorder that is occurring due to excessive thought.
Lee is having excessive thought about calculation mistakes in grading students that are leading to checking papers again and again which is characterized by this behavior as obsessive-compulsive disorder.
Thus, the correct answer is - obsessive-compulsive disorder.
