Urgent! whoever answers fast enough i will mark brainliest!

which of the following statements describes the conservation of a natural resource?

a. a timber company only cuts some trees down and replaces them with new trees.

b. a solar energy company harvests energy from sunlight.

c. a timber company cuts down all of the trees on a piece of land and does not replant them.

d. a wind energy company covers a hillside with wind turbines.