In economics, money is an example of capital

Truth-in-lending laws require that _____.

(A) Banks lend each other funds using the federal funds rate. (B) Bank holding companies offer the same interest rates at all of their member banks. (C) Sellers provide full and accurate information about loan terms. (D) Banks allow Federal Reserve examiners to audit their financial activities.

An economy consists of two goods: beef and lamb. Of all the points on this economy's production possibilities frontier, which one is best in terms of efficiency?