Option: A. Allowing all cultural groups to freely express their beliefs
Explanation:
Multicultural describes cultural diversity, which is from different countries with different cultural backgrounds come together in one place to live or to celebrate.
The United States is a multicultural nation because of its features. Since the discovery of the New World, America has always accepted different people from Europe to settle and to start a new life. America is a place of diverse cultural background. Living together with the American Indians and European is an example of multiculturalism where all people live in harmony.
The Soviet Unions state controlled economy was planned for in a block of five years under Josef Stalin, but it should be noted that there were several five year plans, not just one.