Each of the Following Is Something That Economists Know About

Each of the following is something that economists know about long-run growth except

A) that government policy needs to provide the market economy with the right incentives and signals if it is to function.
B) that better technology is the single most important key to sustained progress in material standards of living.
C) the importance of strong legal and institutional protections for private property.
D) that central planning and central commands are the right kinds of government policy.