Paul Romer's Theory on the Importance of Knowledge Differs from Traditional

Paul Romer's theory on the importance of knowledge differs from traditional theory in that

A) Romer argues that an investment-knowledge cycle allows a once-and-for-all increase in investment to permanently raise a country's growth rate,while traditional theory argues that a once-and-for-all increase in investment leads to a higher standard of living but not to a higher growth rate.
B) Romer argues that investment is not important in promoting growth,but that the acquisition of knowledge is the sole determinant of economic growth.
C) Romer argues that an investment-knowledge cycle exists which requires that investment rates keep increasing or else growth rates will fall,while traditional theory argues that growth rates would not fall,although they would not increase either.
D) Romer emphasizes investment rates while traditional theory emphasizes the importance of knowledge as a factor of production.