90, because 1 fits into 90, 90 times.
Just like think of what they have in common and what they don't have in common
Answer:
honest trust worthy and reliable
Explanation:
The concept that the text serves to illustrate is <em><u>ETHNIC BOUNDARY MAKERS</u></em> which are the particular characteristics that an ethnic group has and are used to distinguish it from another ethnic group.
We can say that this is the right concept for the text because it is evident how it is describing the specific characteristics for a person to be Jewish, such as have a Jewish mother, and follow the Jewish religions among others. That being said, ethnic boundary makers can be applied to the text.