The California condor a. is being introduced into regions that were not part of

The California condor
a. is being introduced into regions that were not part of its historic geographical range as part of the effort to save the species.
b. became endangered partly because of high mortality that resulted from its eating carcasses containing lead shot.
c. has increased in numbers because of captive propagation, though released captive-bred condors have not yet bred in the wild.
d. has been reintroduced to the wild over the objections of cattle ranchers, who believe correctly that condors kill livestock.
e. All of the above