Answer:
Samuel's dad is B. Making the fundamental attribution error.
Step-by-step explanation:
The fundamental attribution error refers to the tendency individuals have to assume that an individual acts a certain way because of his/her personality, rather than the environment or external situations which could be of influence.
Individuals tend to assume someone is internally driven to something, not taking into account any external motives such as having to perform certain task because it was asked of them.
In this example we can see that Samuel had a school assignment; writing about the mayor and why he is good for the town. His father is not taking into account this information, automatically assuming Samuel is disagreeing with him because of his points of view on the essay. He doesn't listen when Samuel tells him he had to write it.
So, it can be concluded that Samuel's dad is making this error about his son, thinking that he really thinks this way about the mayor.