The Spouse of an Immunocompromised Client Is Diagnosed with Influenza

The spouse of an immunocompromised client is diagnosed with influenza virus infection.  The spouse asks the office nurse how long contact with the client should be avoided to prevent the infection from spreading.  What is the nurse's most appropriate response?

A) "Avoid close contact for about a week."
B) "It's impossible to avoid contact with the client.  Just wash your hands often."
C) "You are sick already, and so you are not contagious anymore."
D) "You don't have to worry as long as the client has received the influenza vaccination."