The correct option is B II and III
Genetic diversity reflects the variations in genetic composition that exists between individuals of the same species.
Rauwolfia vomitoria is a medicinal plant that grows in different Himalayan ranges. It produces a chemical compound named reserpine which is used for the treatment of high blood pressure.
Different varieties of this plant produce reserpine which is chemically identical but varies in potency and concentration. This is due to the genetic diversity amongst the individuals belonging to the species Rauwolfia vomitoria.