A Fundamental Feature of Early Classical Macroeconomics Is That

Multiple Choice

A fundamental feature of early classical macroeconomics is that

A) aggregate demand and aggregate income are usually unequal.
B) prices of inputs and outputs are relatively rigid.
C) the economy's level of employment can remain substantially below its natural level over a prolonged period of time.
D) the economy can achieve full employment on its own, though there could be temporary periods in which employment falls below the natural level.