Aspecies can develop genetic diversity

a. immediately
b. over long period of time
c. over short period of time
d. over any period of time

The correct answer is-  C. over a long period of time.

Genetic diversity can be described as the sum of all the genetic characteristics, which correspond to the genetic makeup of all the organisms within a species.

Genetic diversity allows the organisms of a population to adapt to the changing environmental conditions as beneficial alleles allows the differential survival and reproduction of an organism.

Thus, a species  develop genetic diversity over a long period of time that brings desirable modification or lead to the evolution of new species.

a chair, a bed, and a toothbrush

explanation:

b a mature ovary of a plant.