The Difference Between the Vertical and Horizontal Dimensions of Management

The difference between the vertical and horizontal dimensions of management is:

A) that the vertical dimension relates to the hierarchical levels of the organisation and the horizontal to the nature of the responsibility area.
B) that the vertical dimension relates to the nature of the responsibility area and the horizontal dimension to the hierarchical levels of the organisation.
C) the vertical dimension refers to the skill level and the horizontal to the knowledge base.
D) the vertical level only concerns the top management, whereas the horizontal dimension focuses on the employees of the organisation.