A person got an infection, he became ill, but then he survived. What do you think of the immunity he would have developed?

Explanation

The correct answer is 'Naturally induced active immunity'. This type of immunity develops when a person is exposed to a pathogen through natural infection, prompting the immune system to produce antibodies and memory cells specific to that pathogen. This process leads to long-term immunity.Option A, 'Active immunity', is correct in describing the type of immunity, but it lacks specificity regarding how it was acquired.Option B, 'Artificially induced active immunity', involves immunity developed through vaccines, which is not applicable as the person was naturally exposed to the pathogen.Option C, 'Passive immunity', involves receiving antibodies from an external source, providing immediate but short-lived protection, unlike the body's own prolonged immune response.