DBMS Introduction and ER Model ER Model

An ER model of a database consists of entity types A and B. These are connected by a relationship R which does not have its own attribute. Under which one of the following conditions, can the relational table for R be merged with that of A?

1
Relationship R is one-to-many and the participation of A in R is total.
2
Relationship is one-to-many and the participation of A in R is partial.
3
Relationship R is many-to-one and the participation of A in R is total.
4
Relationship R is many-to-one and the participation of A in R is partial.

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