Option 1 -> This is a central problem addressing resource allocation and production decisions.
Option 2 -> This is a central problem addressing production techniques and efficiency.
Option 3 -> This is not a central problem; location is not a fundamental economic question.
Option 4 -> This is a central problem addressing distribution of goods and services.
Hence, Option 3: Where are these goods produced? -> The three central problems of an economy are: (1) What to produce and in what quantities, (2) How to produce (which techniques/methods), and (3) For whom to produce (distribution). "Where to produce" is not considered a fundamental economic problem as it relates more to geographical logistics rather than core resource allocation decisions that arise from scarcity. -> correct