Answer:
The answer is a. he is unmotivated to do well in school.
Step-by-step explanation:
The fundamental attribution error explains that a person is more likely to attribute their own outcomes to situational causes (dependent on context and situation) and others' to dispositional (personal or internal) causes. This is especially common for negative outcomes.
In the example, the teacher would disregard any possible situational factor; he would simply assume it was lack of motivation.