The correct option is C None of the above
A virus is made up of a DNA or RNA genome inside a protein shell called a capsid. Some viruses have an external membrane called envelope. Viruses multiply it genetic material only when they are in a living cell. The new viral particles are produced utilizing the raw materials from the host cell. Phage DNA, envelope and capsid proteins are multiplied separately in the host cell. The viral particles are then assembled into a new virion. Thus, the correct answer is option D.