Use the following business rules to create an ERD. Write all appropriate modality and

cardinalities in the ERD.

a$.$ A department employs many employees, but each employee is employed

by one department.

b$.$ Some employees, known as "rovers," are not assigned to any

department.

c$.$ A division operates many departments, but each department is

operated by one division.

d$.$ An employee may be assigned many projects, and a project may have

many employees assigned to it$.$

e$.$ A project must have at least one employee assigned to it$.$

f$.$ One of the employees manages each department, and each department

is managed by only one employee.

g$.$ One of the employees runs each division, and each division is run

by only one employee.

The Jonesburgh County Basketball Conference $($JCBC$)$ is an amateur

basketball association. Each city in the county has one team as

its representative. Each team has a maximum of $12$ players and a

minimum of $9$ players. Each team also has up to three coaches

$($offensive$,$ defensive, and physical training coaches$).$ During the

season, each team plays two games $($home and visitor$)$ against each

of the other teams.

Draw Crow's Foot ERDs to represent the JCBC database.

Draw your project group ERD.