A company has a number of employees. The attributes of EMPLOYEE include Employee ID $($identifier$),$ Name, Address, and Birthdate. The company also has several projects. Attributes of PROJECT include Project ID $($identifier$),$ Project Name, and Start Date. Each employee may be assigned to one or more projects or may not be assigned to a project. A project must have at least one employee assigned and may have any number of employees assigned. An employee$$s billing rate may vary by project, and the company wishes to record the applicable billing rate $($Billing Rate$)$ for each employee when assigned to a particular project.

a$)$ Draw an actual ER diagram for the above situation.

b$)$ Does this situation allow a project to be created before it has any employees assigned to it$?$