What is the main function of antibiotics?

The main function of antibiotics is to treat infections. Antibiotics are a category of medication specifically designed to combat bacterial infections by either killing bacteria or inhibiting their growth. They work by targeting specific features of bacterial cells that are distinct from human cells, allowing them to effectively eliminate the infection without harming the host's own cells.

While pain reduction, controlling stomach acid, and preventing seizures are important medical functions, they are not the primary role of antibiotics. Pain relief is typically addressed with analgesics, stomach acid control involves antacids or proton pump inhibitors, and seizure prevention is managed with anticonvulsants. Antibiotics focus solely on the management and treatment of infections caused by bacteria, making option B the correct answer.