It Is Known That as Succession Progresses from an Early

It is known that as succession progresses from an early seral stage to a later seral stage, not only do the plants change but so too do the animals. A possible reason for this change in animals present may be

A) a release of inhibition by plants in later seral stages.
B) increased facilitation in earlier seral stages.
C) later seral stages tend to have greater spatial heterogeneity than earlier seral stages.
D) animals are more likely to be found in older habitat types.