Mark is trying to sell a metal-bending machine to a manufacturing firm. He decides to talk to people inside the firm who have expertise in metal bending-who can then provide this information to the buying center. The people he is targeting are known as [{

The correct answer is A) influencers. Influencers are people who have expertise or knowledge in a specific area or product and can influence the decision-making process of the buying center. In this case, Mark is targeting individuals with expertise in metal bending who can provide valuable information to the buying center and influence their decision to purchase the metal-bending machine. Users are individuals who will actually use the product, gatekeepers control access to information or decision-making power, initiators are the ones who identify the need for the product, and aggregators refer to companies that combine multiple products or services into a bundled offering.