Which of the Following Is a Fundamental Characteristic of an Ecosystem

Which of the following is a fundamental characteristic of an ecosystem?

A) It opposes any moves to make fundamental changes in an industry.
B) It decreases the impact of the five forces on an industry.
C) It includes the related industries making complementary products and services, the competitors themselves, the suppliers, and the consumers.
D) It groups together multiple unrelated industries to reduce a domino effect or a ripple effect.