D.

Choice A rationale:

The nurse should administer antiviral drugs as prescribed because these medications can help reduce the severity and duration of influenza symptoms, especially if started early in the course of the illness. Common antiviral drugs used for influenza include oseltamivir and zanamivir.

Choice B rationale:

Providing cool compresses is an appropriate intervention to help reduce fever and discomfort associated with influenza. Cool compresses can provide relief from fever and headache symptoms.

Choice C rationale:

Limiting the number of visitors is important during the influenza outbreak to prevent further spread of the virus. Influenza is highly contagious, and restricting visitors can help reduce the risk of transmission to others.

Choice D rationale:

Encouraging bed rest is essential for patients with influenza as it allows the body to conserve energy, fight off the infection, and recover more effectively. Rest helps the body heal and boosts the immune response.

Choice E rationale:

Offering antibiotics for bacterial infection is not necessary for a patient with influenza. Influenza is caused by a virus, not bacteria, so antibiotics are ineffective against it. Antibiotics should only be prescribed if there is a secondary bacterial infection.