Correct Answer: For whom to produce

Solution : The correct answer is (b) For whom to produce.

The theory of distribution is concerned with how the output of an economy is distributed among different people. This includes the distribution of income, wealth, and goods and services.

The problem of "for whom to produce" is concerned with who will benefit from the output of an economy, and how much they will get. This is a complex problem, as it involves factors such as income inequality, social justice, and economic efficiency.