The correct option is A Genetic diversity
The diversity at genetic level shown by a single species over its distribution range is known as genetic diversity. Rauwolfia vomitoria is a medicinal plant species which grows in different Himalayan ranges. This plant exhibits genetic diversity over the Himalayan range. The genetic variation of the plant is on the basis of concentration and potency of reserpine (an active chemical) that the plant produces.
The diversity at the species level is known as species diversity whereas, diversity at the ecosystem level is called ecological diversity.