The Latitudinal Diversity Gradient Refers to What Pattern of Species

The latitudinal diversity gradient refers to what pattern of species diversity?

A) For many kinds of organisms, species diversity is greatest near the equator and lowest near the poles.
B) For many kinds of organisms, species diversity is greatest near the poles and lowest near the equator.
C) For many kinds of organisms, species diversity is greatest at low elevation and lowest at high elevation.
D) For many kinds of organisms, species diversity is greatest at high elevation and lowest at low elevation.
E) Plants are most diverse near the equator, while animals are most diverse toward the poles.