Answer:
The correct answer will be option- B.
Step-by-step explanation:
A virus is an infectious particle which contains protein molecules- capsid and docking proteins and the genetic material like- DNA and RNA.
The capsid is the shell of virus made up of proteins called protomers which form a 3-D structure unit. The capsid encloses the genetic material of the virus elements, contains attached proteins which helps in penetration like tail proteins of the bacteriophage and the receptor proteins to attach the virus to the host cell.
Thus, Option-B is the correct answer.