Which of the following is true of factor endowments according to Porter?

A. Basic factors, unlike advanced factors, are the most significant for competitive advantage.

B. Basic factors can be upgraded by nations, while advanced factors are endowed by nature.

C. The initial advantage provided by advanced factors is extended by investment in basic factors.

D. Disadvantages in basic factors can create pressures to invest in advanced factors.

E. Advanced factors include climate, location, and demographics.

D