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

out of the choices i'd say d the ability to set goals, mainly because to desire to continue you need motivation but it isn't motivation in that part, but setting goals means you have an endgame and you want to reach it which sums up motivation.