When children are immunized,they contribute to the protection of others.This is referred to as:

A) community immunity.
B) vaccinating.
C) herd immunity.
D) failure to thrive.

Herd immunity occurs when a high percentage of a population is immunized against a disease, which makes it difficult for the disease to spread. This not only protects the individuals who are immunized but also those who are not able to receive vaccines, such as infants or people with weakened immune systems. Therefore, children who are immunized contribute to the protection of others through herd immunity. Community immunity and vaccinating are similar concepts that refer to the overall immunity of a population and the act of administering vaccines, respectively. Failure to thrive is a condition that results in inadequate growth and development in children, but it is not related to immunization.