The correct answer is: C. Line and staff organisation

A line and staff organisation is a type of organisational structure that combines the functional and line structures. In a line and staff organisation, there are two main types of positions: line positions and staff positions. Line positions are responsible for carrying out the organisation's primary objectives, while staff positions provide support and advice to the line positions.

Line and staff organisations are often used in large, complex organisations where there is a need for both efficiency and coordination. They can be effective in ensuring that all parts of the organisation are working towards the same goals.

Here is a brief explanation of each option:

  • A. Line organisation is a type of organisational structure in which there is a clear hierarchy of authority, with each level of the hierarchy responsible for a specific set of tasks. Line organisations are often used in small, simple organisations where there is a need for clear lines of communication and accountability.
  • B. Functional organisation is a type of organisational structure in which tasks are grouped according to their function. Functional organisations are often used in large, complex organisations where there is a need for efficiency and coordination.
  • D. None of the above is not a valid option.