A$.$ Business Rules:

Multiple departments can exist within a single division.

A department is exclusively associated with one division.

Departments can have a workforce comprising numerous employees.

An employee is assigned to only one department.

A single employee, acting as a manager, oversees each department.

Managers are responsible for a single department each.

B$.$ Business Rules:

Customers have the ability to download a variety of CDs$.$

CDs can be accessed and downloaded by a multitude of customers.

C$.$ Business Rules:

The FERDA Corporation runs several manufacturing facilities.

Each manufacturing facility is situated in a distinct geographical location.

It's possible for more than one manufacturing facility to be located within the same geographical area.

A considerable number of employees can be staffed at each manufacturing facility.

Employees hold positions at only one manufacturing facility.