Can you identify the logical fallacy in this claim? “My roommate said philosophy class is boring, and I felt the same too.All philosophy classes must be boring.”

Can you identify the logical fallacy in this claim? “My roommate said philosophy class is boring, and I felt the same too.All philosophy classes must be boring.”
Ahasty generalization
Bpost hoc
Cguilt by association
Doversimplification
正确答案：A