Final answer:
All countries, including Russia, the United States, and China, must decide what goods will be produced, regardless of their economic systems.
Step-by-step explanation:
Every country must make decisions regarding what goods will be produced based on its resources and economic structure. Whether the country has a market economy, like the United States, where businesses make these decisions based on demand and supply, or a command economy, like China or Russia, where the government has more control over production decisions, all countries face this fundamental question. Hence, the correct answer to the question is C) All of the above.