An argument asserts a direct causal link between two events. To most effectively strengthen this causal claim, what kind of additional evidence would be most beneficial for the original author to provide?

The correct answer to the question "An argument asserts a direct causal link between two events. To most effectively strengthen this causal claim, what kind of additional evidence would be most beneficial for the original author to provide?" is Option B: Evidence demonstrating that the supposed cause consistently precedes the effect and that no other plausible causes are at play..

The other options — A) A detailed historical account of similar situations in other contexts., C) A personal testimonial from someone who believes the causal link exists., D) Data showing a strong correlation between the two events without further analysis. — are incorrect for this GMAT Exam Prep question. As explained above: Strengthening a causal claim requires ruling out alternative causes and establishing consistent precedence, which strengthens the argument more than mere correlation, anecdotes, or historical paralle…