How does an influenza virus cause symptoms of the flu to spread in the human body?
O A. The viral nucleic acid attaches to the DNA in a host cell and then
lies dormant.
O B. The new viruses formed inside one cell infect and quickly kill other
cells.
O C. The virus particles produce toxins that poison cells throughout the
body.
O D. The proteins of the viral capsids kill all the cells around an
infected cell.