Final answer:
The correct answer is option b) Achieving goal congruence.
Step-by-step explanation:
Decentralization in business refers to the distribution of authority and decision-making to lower levels of an organization. While there are several advantages to decentralization, such as the use of expert knowledge, improved customer relations, and freeing top management's time, achieving goal congruence is not one of them.
Goal congruence refers to aligning the goals of different departments or individuals with the overall objectives of the organization, which can be better accomplished through centralized decision-making.