When Transforming an E-R Data Model into a Relational Database

Multiple Choice

When transforming an E-R data model into a relational database design,the key of the parent entity should be placed as part of the primary key into the child entity ________.

A) when the child entity is ID-dependent
B) when the child entity is non-ID-dependent
C) when the child entity has a 1:1 relationship with the parent entity
D) when the child entity has a 1:N relationship with the parent entity