From a Biological Standpoint,race Does Not Exist

From a biological standpoint,race does not exist.Practically,however,the term has come to refer to

A) the places of certain ethnic groups, such as the Chinese in a "Chinatown."
B) differences between people based on skin color and other physical characteristics.
C) differences in cultures and practice.
D) differences between people as determined by intelligence tests.
E) differences between people as determined by where they originate from.