Mongolian, a Racial Slur

Mongolian, a racial slur:

A) referred to one of the outdated three races proposed by Georges Cuvier in the eighteenth century, the other two groups being Caucasoid and Negroid.
B) meant Asian.
C) referred to a person of combined Spanish and Native American descent.
D) referred to a person born to (usually) a British father and an Indian mother.
E) referred to persons of mixed African and Asian ancestry.