When you talk about a person’s you are referring to the country race or social class o

问题补充：

When you talk about a person’s , you are referring to the country, race, or social class of their parents or ancestors.

A. origin

B. nationality

C. generation

D. relation

答案：

(答案→)A. origin

B. nationality

C. generation

D. relation

解析：A n.起源，根源；出身；B国籍；C一代人；D关系，联系；教育：当你们在谈论一个人的出身的时候，你们是在谈论他的父母亲或者祖先的国家，种族或者社会地位。根据第二句中的the country, race, or social class of their parents or ancestors可知是对名词origin的内容的解释。故A正确。