The Nurse Administers a Vaccine to a Child

The nurse administers a vaccine to a child. What is the best understanding of the nurse as it relates to the manufacture of this vaccine?

A) The vaccine is produced by a combination of animal and plant products.
B) The vaccine is produced by natural plant extracts in the laboratory.
C) The vaccine is naturally produced in animal cells or microorganisms.
D) The vaccine is most commonly synthesized in a laboratory.