Both A and C are correct.
Important and insignificant are opposite. Insignificant means not important, so the correct answer would be B, peaceful.
Important is to insignificant as restless is to peaceful.
The answer is D because that's the best example
Answer:
Natural resources are materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain. Such examples that are found in the United States are gold, silver, copper, nickel, iron, lead, uranium, bauxite, mercury, tungsten, and zinc.
