Answer:
The correct answer is - D. all of the above.
Step-by-step explanation:
Any effort from a private sector made for the preserve or help for the betterment of the environment and ecology. Establishing and making a park will help in increasing plant diversity which increases the air quality of the ecosystem and atmosphere.
An individual donates money for the park. Recycling the waste of a private business is also hep in maintaining the environment. Preserving the land also helps the environment.