The term 'active immunity' means

Provide information about vaccination.

Which type of cells produce an army of proteins to fight against pathogens that have entered our body?

Given below are two statements:
Statement $I:$ Autoimmune disorder is a condition where the body's defense mechanism recognizes its own cells as foreign bodies.
Statement $II:$ Rheumatoid arthritis is a condition where the body does not attack self-cells.
In the light of the above statements,choose the most appropriate answer from the options given below:

Which is an example of active immunity?

The immunity obtained after the body has recovered from a disease is