Answer: Option D
Explanation: In simple words, buying center refers to the group of individuals in an organisation or a family that collectively thought and makes decision regarding buying a certain commodities for specific objectives.
These individuals are responsible for giving the best deals regarding the purchase and managing the timeliness and ensuring the quality of the order made. There are five main roles in a buying center which are influences, buyers, deciders, gatekeepers and initiator.
Buying centers are important for an organisation as they provide a base line for the marketeers as to what message the organisation has to convey regarding its product in the market as their purchase decision directly affects the quality and other such characteristics of the product.