The Term Race and Ethnicity Are Often Used Interchangeably, Although

The term race and ethnicity are often used interchangeably, although differences exist between the two concepts. What differentiates ethnicity from race?

A) Race involves biological characteristics while ethnicity does not.
B) Race is ascribed whilst ethnicity is avowed.
C) Race is attached to nation while ethnicity is attached to group.
D) Race does not refer to biological characteristics but ethnicity does.