What is the full form of $CMI$?

Identify the incorrect statement regarding immunity:

Identify $X$ from the given figure.

Which response is provided by the body against a pathogen based on memory?

When ready-made antibodies are directly given to protect the body against foreign agents,it is called . . . . . . .

Assertion $A$: Innate immunity consists of various barriers. Reason $R$: Exposure to a pathogen is required for the stimulation of innate immunity. Which option is correct for Assertion $A$ and Reason $R$?