____ is one way to develop active immunity to a disease.
a.
Chemotherapy
c.
A vaccine
b.
Taking vitamins
d.
All of the above


Please select the best answer from the choices provided

A
B
C
D

Respuesta :

The answer would most likely be C. Vitamins just keep you healthy and chemo helps with cancer so C is the only logical option
The answer would be C 99 percent correct.