-If we want to add the relationship "Published-in" between Book and Country and indicate the number of copies of the book sold (copies-sold)in the countries,copies-sold would be:
A) An attribute of Book
B) An attribute of Country
C) An attribute of Published-in
D) A weak entity identified by Book

Question

-If we want to add the relationship "Published-in" between Book and Country and indicate the number of copies of the book sold (copies-sold)in the countries,copies-sold would be:
A) An attribute of Book 
B) An attribute of Country 
C) An attribute of Published-in 
D) A weak entity identified by Book

Quizplus · Accepted Answer

Copies-sold is a characteristic of the relationship "Published-in" between Book and Country, indicating the number of copies sold in each country. Therefore, it should be an attribute of the relationship "Published-in" between Book and Country.

-If We Want to Add the Relationship "Published-In" Between Book