An ______ is spoken mainly by a less privileged population that

An ______ is spoken mainly by a less privileged population that has experienced some form of social isolation, such as racial discrimination or segregation.
A、ethnic dialect
B、grammatical
C、political
D、sociocultural
【正确答案】：A
【题目解析】：An ethnic dialect is spoken mainly by a less privileged population that has experienced some form of social isolation, such as racial discrimination or segregation.