Question: When modelling a 1-to-1 relationship and converting an ERD into a relational schema: A. Optional participation can be used to understand which entity is the

When modelling a 1-to-1 relationship and converting an ERD into a relational schema:

A.

Optional participation can be used to understand which entity is the parent and which one is the child
B.

Optional/mandatory participations are not important
C.

If mandatory in both side we can create 3 tables, one for the relationship and 2 for the entities
D.

We should look at the number of attributes that the entities have

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