Exercises - Create requirements and the ER diagram for a scenario with two entities (both with several attributes) involved in the following relationship:
a. 1:M relationship, where participation on the 1 side is mandatory and participation on the M side is optional.
b. 1:M relationship, where participation on the 1 side is optional and participation on the M side is mandatory.
c. 1:M relationship, where participation on both sides is mandatory.
d. 1:M relationship, where participation on both sides is optional.
e. M:N relationship, where participation on one side is mandatory and participation on the other side is optional.
f. M:N relationship, where participation on both sides is mandatory.
g. M:N relationship, where participation on both sides is optional.