The correct answer is C. horizontal linkages.
Vertical linkages are the relationships between different levels of an organization, such as between the top management and the lower-level employees. Horizontal linkages are the relationships between different departments or units within an organization, such as between the marketing department and the sales department.
In order to coordinate activities between the top and bottom of an organization, it needs to have strong horizontal linkages. This is because horizontal linkages allow different departments or units to communicate and collaborate with each other, which is essential for coordinating activities across the organization.
Vertical linkages are also important, but they are not as important for coordinating activities between the top and bottom of an organization. This is because vertical linkages are primarily concerned with the flow of information and resources up and down the organizational hierarchy. However, coordinating activities between the top and bottom of an organization requires more than just the flow of information and resources. It also requires cooperation and collaboration between different departments or units. This is where horizontal linkages come in.
Horizontal linkages allow different departments or units to communicate and collaborate with each other. This is essential for coordinating activities across the organization. For example, if the marketing department wants to launch a new product, they need to coordinate their activities with the sales department, the production department, and the customer service department. This can only be done effectively if there are strong horizontal linkages between these departments.
In conclusion, the correct answer is C. horizontal linkages.
