Whether to have more consumption goods or to have investment goods which will boost production and consumption tomorrow, is a part of which of the central problem?

What to produced and in what quantities?

The correct answer is Option (4) → What to produced and in what quantities?

The central economic problem of "What to produce and in what quantities?" deals with the allocation of limited resources among various goods and services. It includes deciding how much of consumption goods (which satisfy current wants) and how much of investment goods (which enhance future production and consumption) should be produced. This decision involves making trade-offs between present and future consumption and is a key part of resource allocation in an economy.