The krill, an abundant shrimp-like marine crustacean that inhabits the bottom of oceans, represents one of many organism survival story: along with the huge sized whales, the star fish, and other species that cohabit the ocean, they have set themselves up as highly adaptive creatures in an age when the capability to adapt to the climatic alteration introduced by Earth's ever changing landscape has created a successive group of dominant sea creatures.
(A) they have set themselves up as highly adaptive creatures in an age when the capability
(B) it has set itself up as a highly adaptive creature in an age when to be able
(C) they have set themselves up as being highly adaptive creatures in an age when being able
(D) it has set itself up as a highly adaptive creature in an age when its ability
(E) it has set itself up as a highly adaptive creature in an age when the ability