Which fallacy is NOT characterized by direct irrelevance but rather ignores the true position of an argument?

The Straw Man Fallacy is correctly identified as a fallacy that misrepresents an opponent's argument, thereby ignoring the actual position being taken. In this fallacy, one party creates a distorted or exaggerated version of the argument, which is easier to attack or refute. This diversion away from the actual argument allows the person committing the fallacy to claim victory over an argument that was never actually presented by their opponent.

In contrast, other fallacies, such as the Red Herring, involve introducing irrelevant topics to distract from the issue at hand, while Tu Quoque presents an appeal to hypocrisy, undermining the opponent's argument based on their behavior rather than addressing the argument itself. The fallacy of Ambiguity revolves around unclear or double meanings in language, but it does not specifically focus on misrepresenting an argument. Therefore, the Straw Man Fallacy is distinct in its characteristics of ignoring the true position of an argument by misrepresenting it, making it the correct choice in this scenario.