Answer: (B) Decentralized planning staff
Step-by-step explanation:
The decentralized planning staff is one of the type of organizational structure that handle all the responsibility and the operations in an organization.
The importance of the decentralized planning staff is that it helps in making various types of decisions and also motivating them by developing various types of functions in an organization.
According to the question, the decentralized planning staff is one of the approach for planning various types of functions for the betterment and this approach is also known as the grass root based planning.
Therefore, Option (B) is correct.