A nurse is caring for a client who asks why she is being prescribed aspirin 325 mg daily following a myocardial infarction. The nurse should instruct the client that aspirin is prescribed for clients who have coronary artery disease for which of the following effects?

A. To provide analgesia: While aspirin has analgesic properties, the dose used for secondary prevention after MI is for its antiplatelet effect, not for pain control. B. To prevent blood clotting: Aspirin irreversibly inhibits platelet aggregation (via COX-1/thromboxane A₂ pathway), reducing thrombus formation in coronary arteries and lowering risk of recurrent MI. C. To prevent fever: Aspirin can reduce fever, but post-MI therapy is aimed at antiplatelet effects rather than antipyresis. D. To reduce inflammation: Aspirin has anti-inflammatory effects at higher doses, but the primary reason for daily low-dose aspirin after MI is platelet inhibition to prevent clotting.