The long-term problem with red-cockaded woodpecker habitat intervention in the southwest United Stat

The long-term problem with red-cockaded woodpecker habitat intervention in the southwest United States is

A) the only habitat that can support their recovery is large tracts of mature southern pine forest.
B) the mature pine forests in which they live cannot ever be subjected to forest fire.
C) all of the appropriate red-cockaded woodpecker habitat has already been logged or converted to agricultural land.
D) the social organization of the red-cockaded woodpecker precludes the dispersal of reproductive individuals.
E) what habitat remains for the red-cockaded woodpecker does not contain trees suitable for nest-cavity construction.

Ans is D but I think C is better Ans. Do I miss something?