Why Does Succession in Intertidal Communities Tend to Happen Faster

Why does succession in intertidal communities tend to happen faster than succession after a disturbance in terrestrial communities?

A) The ocean has a higher concentration of organisms than soil.
B) There are many more disturbances in the intertidal zones than in terrestrial areas.
C) The generation time of dominant species in the intertidal zone is shorter than that of the dominant species in terrestrial habitats.
D) The generation time of dominant species in terrestrial habitats is shorter than that of the dominant species in the intertidal zone.