Which of the Following Statements About Human Migration Is True

Which of the following statements about human migration is true?

A) In 2010, the United Nations estimated that three in four people migrated to a new country.
B) Saudi Arabia sends more than two million people abroad to work each year.
C) Only 3 percent of the world's population moves beyond national borders.
D) The last thirty years has had one of the lowest rates of migration in human history.
E) People are pulled to migrate by poverty, famine, and natural disasters.