Answer: The correct answer is option "D'"
Explanation: The environment benefits us in many ways, it is the environment that gives us the air we breath in, and sends our emitted carbondioxide CO2 to plants and makes it available for plant to use, when plant converts the Co2 they get oxygen and energy which they use to grow food for us to eat. It is this same plant that emits the oxygen and makes it abundantly available for living things to breathe in a process called photosynthesis.
Taking care and protecting our environment will provide economic benefits to people. A congested and polluted environment is harmful to the economy and the people living in it at large.