单项选择题 人类活动对生态文明建设会产生深远的影响，下列行为符合生态文明建设理念的是（）。

单项选择题 A) They found ways to speed up the reproduction of bald eagles.B) They developed new types of feed for baby bald eagles.C) They explored new ways to hatch baby bald eagles.D) They brought in bald eagles from Canada.

单项选择题 A) Pollution of the environment.B) A new generation of pest killers.C) Over-killing by hunters.D) Destruction of their natural homes.