What is the philosophy of having minimal impact on the environment called?

A. Be a friend to the environment.

B. Everyone's ecology.

C. Leave no trace.

D. Pack it in, pack it out.

That one was kinda tricky for me to but its C

The correct answer is option C, Leave no trace.

Explanation:

The best way to use environmental resources without causing any harm to nature is to "Leave no trace" or in simple languages it means zero waste production. Zero waste can be achieved only in clean source of energies such as solar, wind, tidal energy etc. For example - a society that has zero solid waste production shall be achieving this either by using reusable or disposable product or by efficient waste reduction practices.

Thus, if no waste is generated from any kind of human activity it shall be considered as zero waste generation or "leave no trace"