One of the Key Contributions of the Punctuated Equilibrium Model

One of the key contributions of the punctuated equilibrium model is that it helps explain

A) why transitional fossils are more common than Darwin would have predicted.
B) why large,widespread populations tend to be the ones that evolve most rapidly and unpredictably.
C) why transitional fossils tend to be rare and certain common fossil species remain unchanged for long time spans.
D) how new species arise from hybridization events.