Which of the Following Are Important for Countries to Promote

Multiple Choice

Which of the following are important for countries to promote with property rights and incentives if economic growth is to occur?
I.specialization
Ii.saving and investment
Iii.increases in human capital
Iv.discovery of new technology

A) i,ii,iii and iv.
B) ii and iii.
C) iii and iv.
D) ii and iv.
E) i,ii and iv only.