The process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography (habitats) is called

The correct option is C Adaptive radiation
Adaptive radiation
The process by which new species are formed by adapting to its environment from a common ancestor is called adaptive radiation. Example: The evolution of the beak structures in Darwin's Finches.

Natural selection
Natural selection is the process where organisms that are better adapted to the environment survive and reproduce.

Convergent evolution
Convergent evolution or adaptive convergence is development of similar functional structures in unrelated organisms. For example the wings of bats and the wings of Aves.

Final answer
(b) Adaptive radiation