I think it'd be B.. I might be wrong tho..
There are so many examples for that in different areas, like steroidal compounds experiment carried out in our lab recently.
Here's one link: hhttp://www.alfa-chemistry.com/products/steroidal-compounds-8.htm
Archaebacteria is the answer I'm pretty sure you are looking for. anybody correct me if I'm wrong
Answer:
Economic growth
Explanation:
It would help the planet plants animals and people
