Which source of stress at school would most likely cause a student to lose focus and motivation

Taking a difficult Course

Explanation:

There are several stress sources that would make a a student literally lose focus and motivation.

1. Difficult Course(s). Some students dread mathematics. When such a student fails repeatedly ,the mental stress of studying and not getting the calculations correctly could make the student quit.

2. Lack of schedule: lack of planning

3. Emotional trauma. Some student can lose focus and motivation due to tragic events in the home, divorce between parents etc

sadly i believe the answer is d