Step 1: Understanding the Concept:
Every economy faces basic, central economic problems due to scarce resources and unlimited human wants. These are broadly categorized as:
1. What to produce?
2. How to produce?
3. For whom to produce?
Step 2: Detailed Explanation:
Let us define these basic economic questions:
- "What to produce" deals with selecting which goods and services to produce and in what quantities.
- "How to produce" is a purely technological and allocation problem. It deals with selecting the most efficient combination of inputs (labor, land, capital) and production techniques (e.g., labor-intensive versus capital-intensive techniques) to minimize costs.
- "For whom to produce" deals with the distribution of the final national product among different members of society.
Step 3: Final Answer:
Therefore, "How to produce" refers directly to the choice of resource combination and production techniques, matching Option (D).