Which statement correctly compares an antibiotic and an anticoagulant?

• A. Both prevent bacterial infections.
• B. Antibiotics prevent blood clots; anticoagulants treat infections.
• C. An antibiotic treats bacterial infections; an anticoagulant prevents blood clotting.
• D. Antibiotics increase urine production; an anticoagulant reduces fever.

Answer: (C)

Antibiotics and anticoagulants have distinct roles. An antibiotic treats bacterial infections by killing bacteria or stopping their growth. An anticoagulant prevents blood clotting, reducing the risk of abnormal clot formation. So the statement that an antibiotic treats bacterial infections and an anticoagulant prevents blood clotting is correct. The other options mix up these functions or describe effects that aren’t characteristic of these drugs—antibiotics don’t prevent infections themselves and anticoagulants don’t treat infections, and they don’t have primary effects like increasing urine production or reducing fever.