[60 Points] A company database contains information about Managers (identified by m_id) and Projects (identified by p_no). Managers manage projects. You will be given some situations concerning the manage relationship set. For each situation, draw an ER diagram for it using the notation taught in our class (assuming no further constrains hold). a. Managers can manage the same project in different calendar years, and each year must be recorded. b. Managers can manage the same project in several calendar years, and only the current year needs to be recorded. [60 Points] A company database contains information about Managers (identified by m_id) and Projects (identified by p_no). Managers manage projects. You will be given some situations concerning the manage relationship set. For each situation, draw an ER diagram for it using the notation taught in our class (assuming no further constrains hold). a. Managers can manage the same project in different calendar years, and each year must be recorded. b. Managers can manage the same project in several calendar years, and only the current year needs to be recorded