Answer:
Option C, green country, is the right answer.
Explanatasion:
A country is usually a political boundary, a state or a nation. Those who live in the territory for a long time came to be known as it's citizens. In modern trends, the countries of the world are distinguished on the basis of their development, therefore, we have two types of countries: developing and developed countries. Moreover, a country which is environmental friendly comes to be known as a Green Country.
