Which One of the Following Statements About Growth Theories Is

Which one of the following statements about growth theories is correct?

A) In neoclassical growth theory, technological progress is the result of rapid increases in saving and investment in capital per person.
B) In classical growth theory, physical resources are unlimited.
C) In classical growth theory, real GDP per person is unrelated to the subsistence real GDP.
D) In the new growth theory, knowledge is not subject to diminishing returns.