In the Ecotron Experiments of Shahid Naeem Comparing Species Diversity

In the Ecotron experiments of Shahid Naeem comparing species diversity and ecosystem function, it was found that a larger ground cover also meant

A) higher nutrient uptake by animals in the system.
B) a larger plant biomass and greater community productivity.
C) more individual plants from fewer plant species.
D) ecosystem function depends only available light intensity.
E) genetic, species, and ecosystem attributes are tightly linked.