Which of the following fallacies involves a hasty conclusion based on insufficient evidence?

The choice of sweeping generalization accurately identifies a specific fallacy where a conclusion is drawn too broadly based on insufficient evidence. This fallacy occurs when an argument takes a small or unrepresentative sample and generalizes it to a larger group, resulting in an unjustified conclusion.

For example, if someone claims that "All cats are unfriendly" after only interacting with a few unfriendly cats, this would illustrate a sweeping generalization. The vital aspect here is the lack of adequate evidence to support such an extensive conclusion, often leading to flawed reasoning.

In contrast, the other options represent different fallacies that do not fit this definition. The straw man fallacy distorts an opponent's argument to make it easier to attack, and anecdotal evidence relies on personal stories instead of solid evidence. Plurium interrogationum, also known as the complex question fallacy, involves asking a question that presumes guilt or false premises without adequate evidence. Thus, the essence of the correct answer lies in its focus on hasty conclusions drawn from limited data, which is characteristic of sweeping generalization.