The options of the question are:
A) toxoids.
B) inactivated viruses.
C) antibodies.
D) parts of bacterial cells.
E) live, attenuated bacteria.
Answer: Antibodies
Explanation:
The vaccine can be defined as the substances which when given to the body generates the acquired immunity in the body against a particular disease. It is a type of biological preparation because it contains the attenuated form of microbes in it.
It generally contains the substance that resembles the disease causing microorganism, often made by surface proteins of the microorganism, toxoids, live or attenuated form bacteria, inactivated virus,
These substances make the body ready for the future disease against which the vaccine is being given to the body.
Example: vaccine for chicken pox, vaccine for polio.
