There are several influenza vaccines administered in the United States. Regarding these vaccines, which one of the following statements is LEAST accurate?

  •  One of the vaccines is an inactivated vaccine consisting of formaldehyde-treated influenza virions.
  •  One of the vaccines contains purified peptide subunits of neuraminidase produced in yeast.
  •  One of the vaccines contains a temperature-sensitive mutant of influenza virus that replicates in the nose but not in the lungs.
  •  Influenza vaccines contain influenza A and B strains but not C strains.