Answer:
The correct answer is the option B: Institutes a dual hierarchy that violates the unity-of-command principle.
Explanation:
To begin with, in the business management field the concept known as "Matrix structure" or matrix management as well is refered to the dynamic way of organizating the company that has the characteristic of having the employees of the business answering directly to two or more superiors of leaders instead of just one. Therefore that in this type of organizational structure sometimes the matters of certain departments tend to interfere or collide with the objectives of others. That is the main reason why it does violates the principle of unity-of-command described in the organizational theory.