Traditionally, in order to be Jewish, a person must have a Jewish mother, follow the Jewish religion, and abide by kosher food limitations. Although they are not ironclad, these customs set "traditional" Jewish people apart from others. What concept does this serve to illustrate?

A) ethnic boundary markers
B) ethnic-making projects
C) socially significant traits
D) religious determinism

(A) Ethnic boundary markers

Explanation:

 According to the given question, the given situation is best illustrating the concept of Ethnic boundary markers as it is one of the social interaction process that helps in maintain the culture, religion and the traditions.

  On the basis of the given Jewish culture, language and the traditions the person are basically represent as "Jewish" because of these given custom set.

 The ethnic boundary markers is basically describe about the various types of characteristics related to the ethnic group and by using these characteristics such as language, name the people are signify to the specific group within some ethnic boundaries.

 Therefore, Option (A) is correct answer.

answer; i believe that the correct answer to the above question is; (tariff)