The Daughter of an Older Patient with Chronic Bronchitis Says

The daughter of an older patient with chronic bronchitis says to the nurse, "I don't understand why my father has not been prescribed antibiotics for his bronchitis. The last time I had bronchitis I got antibiotics." The nurse considers the following when formulating a response:

A) Antibiotics tend to be less effective in older adults than in younger adults.
B) Antibiotics are not prescribed in chronic bronchitis since the cause is usually not bacterial.
C) The routine use of antibiotics is controversial because the causal role of bacterial infection is often not clear.
D) Normal age-related decreases in immune response delay the presentation of classic symptoms.