A relationship can be classified in terms of
-
degree
-
connectivity
-
composition
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Both (1) and (3)
-
All of the above
B
Correct answer
Explanation
Connectivity can also be used to describe a relation. Connectivity means how many instances of one entity are associated with how many instances of another entity. It can be:
- One to one (1 : 1)
- One to many (1 : M)
- Many to one (M : 1)
- Many to many (M : N)
So, this answer is correct.