One of the Major Reasons India, China, and the Philippines

One of the major reasons India, China, and the Philippines attract multibillion-dollar investments is that:

A) they are more developed than any other developed country in the world.
B) they have a large cohort of technically skilled university graduates who work for about one-fifth the pay of comparable American workers.
C) the value of Euros is lower in the Asian market than in the American market.
D) the level of prosperity in these countries is the highest in the world, ahead of the United States and Europe.