Answer:
Functional structure.
Explanation:
Functional structure of a business is one that is based on the different functions that exists in different departments. For example a business can be structured with accounting, sales, operations, and human resources seperate. People with similar specialities are grouped together to achieve departmental objectives.
The advantage of this is that communication within the department is good and they work efficiently because they understand themselves.
Communication between departments is done between the department heads.