Arrange in proper order.

1) Middle level management, Top level management, Lower level management.
Ans:- 
1. Top level management
2. Middle level management
3. Lower level management

2) Departmental Head, CEO, Supervisor, Managing Director.
Ans:- 
1. CEO
2. Managing Director
3. Departmental Head
4. Supervisor

3) Office clerk, Shareholders, Managing Director, Board of Directors.
Ans:- 
1. Shareholders
2. Board of Directors
3. Managing Director
4. Office clerk