Keane and Joelle are running for class president. Keane says that Joelle is terrible at math, and therefore could never be a good president. This is an example of a(n) fallacy.

Ad hominem

Explanation:    

 The ad hominem fallacy is one type of argument that is specifically used in the argumentative strategy and it include the various types of attributes that helps the person for making the various types of argument based topics. It is basically used in the various types of philosophical concepts.

According to the given question, the Ad hominem fallacy is one of the example that best illustrating the given situation as Keane and the Joelle both are the candidates wanted to be the class president.

Therefore, ad hominem fallacy is the correct answer.

answer; i believe the answer is (b) fascism;