Answer: All of the above
Step-by-step explanation:
The options to the question include:
A. influencer.
B. a buyer.
C. a decider.
D. a gatekeeper.
E. all of the above
Based on the information given in the question, the purchasing manager is a buyer, influencer, gatekeeper, and decider.
The gatekeeper is a person who blocks the way between an individual and the decision maker in an organisation. This can be seen as he looks through books with samples and specifications and then calls salespeople to make presentations to the production manager.
The purchasing manager is also the decider as he makes the decision in the buying process for the organization. He's also the buyer and the influencer. Therefore, the correct option is All of the above.