Which Population of Organisms Would Be Most Likely to Show

Which population of organisms would be most likely to show a Type I survivorship curve?

A) Dolphins, which care for their offspring until adulthood and remain with them
B) Corals, which produce millions of tiny larvae that travel on ocean currents
C) Oak trees, which produce millions of acorns, of which only a few germinate
D) Frogs, which produce millions of eggs and leave them in nests in pond sediment
E) Birds, which care for their baby offspring, but which face many dangers as adults