Answer:
Option-C
Explanation:
Picornaviruses is the virion or naked particles which cause many animal and human infections.
The mechanism of their action is not explained in detail till now but it has been predicted on the basis of certain research that the virus escapes the immune response by enclosing themselves in the lipid membrane-enclosed vesicles formed by the host cells.
These vesicles are produced by the cells during certain physiological mechanisms from the endoplasmic reticulum of the cells.
Thus, Option-C is correct.
