Gause's competitive exclusion principle states that:

A. Two unrelated genus competing for the same resources cannot co-exist indefinitely and competitively superior one will get eliminated eventually
B. Two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will get eliminated eventually
C. Two unrelated species competing for the same resources can co-exist indefinitely and can grow together
D. Two closely related species competing for the same resources cannot co-exist indefinitely but can grow together