It should be the third answer choice. The nations of OPEC chose to cooperate primarily in order to manage the supply of a natural resource.
OPEC works to balance both the production and price of oil so that customers are able to receive a consistent supply of petroleum and investors in the industry are able to make profit from their investments.
I already helped but
1) C
2) B
3) D
4) A
5) F
6) E
C. Europe has a coastal location and many navigable rivers.
This geography allows for easy trade and commerce through commercial ships and boats.
