Why Were Wind- and Sea-Dispersed Seeds the First to Colonize

Why were wind- and sea-dispersed seeds the first to colonize and survive on Krakatau?

A) The seeds of these plants were more resistant to dry conditions than those of animal-dispersed plants.
B) In the early days of colonization, there were no forests to attract animals that could disperse seeds.
C) Plants with wind-dispersed seeds were able to survive the volcanic blast better than animal-dispersed plants
D) Animal-dispersed plant seeds are more likely to be digested than wind- and sea-dispersed plants.