Many species of marsupials (found mainly in Australia) share similarities ... ...

Many species of marsupials (found mainly in Australia) share similarities to species of placental mammals (found in most other regions of the world) even though they are not very closely related. This is an example of:
(A) divergent evolution.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 20. Evolution