Which Statement Was Supported by Stomp and Colleagues' Study of the Partitioning

Which statement was supported by Stomp and colleagues' study of the partitioning of resources between two species of Baltic Sea cyanobacteria?

A) One feeds on large species of other bacteria, while the other feeds on smaller ones.
B) One tends to stay close to the surface of the water, and the other tends to stay near the bottom.
C) One uses short wavelengths of light efficiently, while the other uses longer wavelengths.
D) One uses nitric oxide efficiently, while the other uses ammonium efficiently.