Consider the following statements with respect to patterns of biodiversity .
A. With very few exceptions, tropics (Iatitudinal range of `23.5^(@)N` to `23.5^(@) S`) harbour more species than temperate or polar areas.
B. In general, species diversity increases as we move away from the equator towards the poles .
C. The diversity of plants and animals is uniform throghout the world but shows a rather even distribution .
D. The largely tropical Amazonian rain forest in South America has the greatest biodiversity on earth.
Of the above statements :
A. B and D are correct
B. A and B are correct
C. A and C are correct
D. A and D are correct