Answer: tall organisational structure
Explanation: In simple words, it refers to a structure in which an organisation is divided into many division and the executive level managers appoints individual managers at every division who are responsible for managing that separate division only.
Such kinds of structure is used in organisation having centralized authority as all the decisions are made by a handful of executives so it is important that they get proper information from the divisional heads that they have appointed. Therefore, managers with proper knowledge are appointed at every stage.