Many leading Native American scholars have argued in favor of affirmative action. However, some of these scholars may have personally benefited from affirmative action policies. Therefore, their arguments should be ignored.

Answer: The correct answer is : Attacking the Motive

Explanation: The fallacy of attacking the motive happens when a person argues that the position of another person is invalid. In other words, the second argumentator attacks the first arguer's thesis and does so in a defiant way in his motives behind his argument, such as what benefits from his proposed thesis.