Number of components in alfa alfa mosaic virus is

The number of components in alfa alfa mosaic virus is 4.
AMV (Alfalfa mosaic virus) contains four nucleoproteins in major amounts along with a definite length of RNA.
The virion has a capsid (coat protein) but no envelope. The icosahedral symmetry of the capsid is round to elongated.
The range for the length of the virion particle is about 30 - 57 nm. AMV is a multipartite virus and is composed of four particles (three bacilliform and one spheroidal) with a diameter of 18 nm.