Identify the formal fallacy committed in the following argument:
"All communists are revolutionists. All anarchists are revolutionists. Therefore, all anarchists are revolutionists."

Correct option is A

The argument commits the fallacy of the undistributed middle. This fallacy occurs when the middle term in a syllogism (in this case, "revolutionists") is not distributed, meaning that it does not apply to all instances in either of the premises. While both communists and anarchists are revolutionists, this does not imply that communists and anarchists are the same group. The middle term ("revolutionists") fails to link the subject terms correctly, making the conclusion invalid.
Information Booster: · Undistributed middle: A formal fallacy where the middle term fails to adequately connect the premises, making the conclusion unsupported.
· Illicit major/minor: Fallacies occur when terms are improperly distributed between premises and conclusion.
· Existential fallacy: A flaw that assumes the existence of something without adequate premises.