Why do central banks exist?

Answer: Manage money supply and stability

Manage money supply and stability ✓ — Correct! Central banks (like the Federal Reserve) manage the money supply, set interest rates, and act as 'lender of last resort' during financial crises. They aim to maintain price stability (control inflation), support employment, and ensure financial system stability. They're independent from politics to make difficult economic decisions objectively.

Compete with regular banks — Wrong. Central banks don't compete with regular banks—they regulate them and set monetary policy. Central banks don't serve individual customers or make regular loans. They work with commercial banks and manage the broader monetary system.

Store all the country's gold — Wrong. Modern currencies aren't backed by gold (since 1970s). Central banks manage currency value through monetary policy (interest rates, money supply), not gold reserves. Some central banks hold gold reserves, but that's not their primary purpose.