What Explains the Level of Investment in Developing Countries

What explains the level of investment in developing countries?

A) There are more opportunities to make profits in developing countries.
B) There is a higher risk to investing in developing countries.
C) Developing countries are farther away from the countries where investors live.
D) Developing countries are close enough to the United States and Europe that investors can keep track of their assets.
E) The large numbers of different languages spoken in developed countries make investment difficult.