Which of the following secondary metabolites are used as pigments?
(I) Carotenoids
(II) Ricin
(III) Morphine
(IV) Anthocyanin
(V) Abrin.
(VI) Rubber
Anthocyanin and carotenoids are secondary metabolites that impart colour (pigments)
All others given in the question are also secondary metabolites with roles such as drugs, toxins.