The Theory of Economic Growth Concentrates on the ________ Over

The theory of economic growth concentrates on the ________ over the long run,not on ________.

A) growth of investment in capital goods; short-run fluctuations of investment
B) growth of real GDP; growth of potential GDP
C) factor utilization rates; growth of the supplies of factors
D) factor utilization rates; growth of real GDP
E) growth of potential output; fluctuations of output around potential