The coyote is one of several recent ecological success stories: along with the
white-tailed deer, the moose, and other species that are enlarging their natural
domains, they have established themselves as supreme adapters in an era when the
capability to adjust to the environmental changes wrought by human beings has
created a whole new class of dominant large mammals.
A. they have established themselves as supreme adapters in an era when the
capability
B. they have established themselves as being supreme adapters in an era when
being able
C. it has established itself as a supreme adapter in an era when to be able
D. it has established itself as being a supreme adapter in an era when its ability
E. it has established itself as a supreme adapter in an era when the ability
[spoiler]Answer:C/E[/spoiler]