Which of the Following Is Not True of In?uenza

Multiple Choice

Which of the following is not true of in?uenza?

A) In?uenza has glycoprotein spikes of hemagglutinin (H) and neuraminidase (N) .
B) Antigenic drift changes the antigens to reduce immune recognition.
C) Antigenic shift causes changes in the RNA strands.
D) In?uenza B viruses undergo both antigenic drift and antigenic shift.
E) H5N1 is the bird ?u strain that may cause a pandemic.