Under the Basic Model of Metapopulation Dynamics, When the Extinction $( \bar p )$

Under the basic model of metapopulation dynamics, when the extinction rate is equal to the colonization rate, we predict that the proportion of patches occupied $( \bar p )$ will equal

A) 0.
B) 0.25.
C) 0.50.
D) 0.75.
E) 1.