Which of the Following Is an Example of an Effort

Which of the following is an example of an effort to decrease physical capital differences between an advanced and a developing economy?

A) American troops build roads in Iraq.
B) Through World Vision, women and children in Africa receive education.
C) Peace Corps volunteers teach English around the world.
D) Creating Hope International trains women in Afghanistan to become tailors.
E) Habitat for Humanity builds houses for low income families in the United States.