1. Create requirements and the ER diagram for a scenario with two entities (both with several attributes) involved in the following relationships. Please make sure you have read all content in this module before you begin this assignment.

1. 1:M relationship, where participation on the 1 side is mandatoryand participation on the M side is optional.
2. 1:M relationship, where participation on the 1 side is optional and participation on the M side is mandatory.
3. 1:M relationship, where participation on both sides is mandatory.
4. 1:M relationship, where participation on both sides is optional.
5. M:N relationship, where participation on one side is mandatory and participation on the other side is optional.