To corroborate an argument is to ...

• A. Confirm it with additional evidence
• B. Deny it with contradictory data
• C. Explain it briefly
• D. Hypothesize a new theory

Answer: (A)

Corroboration means supporting a claim by bringing in additional evidence. It strengthens or confirms what’s being argued by showing that other sources or data agree with it, not just relying on the initial assertion. For example, if you claim a policy reduces crime, corroboration would involve citing independent studies, official statistics, or expert analyses that reach the same conclusion. This extra evidence helps establish that the argument holds up under scrutiny and isn’t just based on a single source. Denying with contradictory data would undermine the claim, explaining it briefly focuses on clarifying rather than adding new support, and proposing a new theory suggests something new rather than confirming what’s already asserted.