Which of the following has the morphology of a helical virus?

Explanation

Tobacco mosaic virus (TMV) is a well-studied plant virus that belongs to the Tobamovirus genus. It is characterized by its rod-like or filamentous appearance. The structure of TMV consists of a long, cylindrical particle with helical symmetry. The viral particle is made up of a single type of protein subunit, arranged in a helical fashion around the RNA genome. The rod-shaped appearance is due to the helical arrangement of these protein subunits.