Pharmacology Which of the following BEST describes the mechanism of action of aspirin? A Aspirin decreases the serum level of factor VIII B Aspirin decreases the serum level of factor IX C Aspirin irreversibly inhibits platelets D Aspirin irreversibly inhibits thrombin 💡 Explanation Which of the following BEST describes the mechanism of action of aspirin? ✓ Correct Answer: C. Aspirin irreversibly inhibits platelets