Answer:
Would be option B. An expansion of available land and increased biodiversity
(Sorry if it's incorrect)
Step-by-step explanation:
A. would be wrong because it would de decrease this ability of an ecosystem, so that's wrong.
B. would be right because It will increase the amount of wilderness which would help the ecosystem.
C. would be wrong because it would decrease the amount of natural animals in the area.
D. would easily be wrong because it would It would affect the growing rate of the plants and could kill them, which would affect the animals, overall affecting the nearby ecosystem.
So, at least you with option B as being correct.