Govenment Policies That Increase the Efficiency of the Education Sector

Govenment policies that increase the efficiency of the education sector

A) increase the growth rate of output and consumption, unambiguously increasing welfare.
B) increase the growth rate of output but have an ambiguous impact on consumption growth and welfare.
C) increase the growth rate of consumption, has no effect on output.
D) increase welfare but have ambiguous effects on growth rates of consumption and output.
E) imply a trade-off between accumulating human capital and physical capital.