Why Should We Care About the Services That Intact Ecosystems

Why should we care about the services that intact ecosystems provide?

A) We shouldn't, really. We don't impact them.
B) We shouldn't really. We impact them but they keep doing what they do.
C) Because our survival depends on those ecosystems. We can't afford to do all that they do.
D) Because we can make lots of money from ecosystems.
E) Because people are in charge of the Earth.