The Social Construction of Race Is Illustrated by the Way

The social construction of race is illustrated by the way that

A) the birth rate for different racial groups has changed over time
B) Irish people were once considered to be non-white in U.S. society, but are now considered to be white
C) different racial and ethnic groups have varying average lifespans
D) a person with parents of different races may choose to identify as multiracial or with only one racial or ethnic category