Read the Scenario and Answer the Accompanying Question(s)

Read the scenario and answer the accompanying question(s) . Sustainable management requires us to examine the "big picture" of an ecosystem's context, even though we may not understand every piece and process in that ecosystem. Systems thinking recognizes and addresses the essential connections between the pieces of any system to be analyzed.
-Which of the following environmental examples represents systems thinking?

A) planting grass for cattle to feed on in desert regions
B) emission control devices on California automobiles
C) studying the behavior of a global invasive species
D) undertaking a long- term study of Lake Michigan ecology
E) examining the beetle life cycle that is posing a threat to local forests