Final answer:
Antiviral drugs inhibit viral replication by blocking the actions of viral proteins.
Step-by-step explanation:
Antiviral drugs are medications designed to treat viral infections by inhibiting the replication of viruses or suppressing their ability to infect host cells. Unlike antibiotics, which target bacteria, antiviral drugs specifically target viruses. These medications can be used to manage various viral infections, ranging from respiratory viruses to those affecting the liver, herpesviruses, and HIV.
Antiviral drugs inhibit the virus by blocking the actions of one or more of its proteins, which interferes with viral replication. These drugs are specific for a particular virus and do not affect the normal functions of a healthy host cell. Therefore, option A) Interfere with viral replication is the correct answer.