Andrew, who works for TeaTree, is going for his first sales call to Dynamo Motors. TeaTree leads the market in the vending machine industry for beverages. Andrew hopes to meet the members of the buying center first so he can estimate the demand for beverages and engage them in a presentation regarding his products. Additionally, he would like to get permission to give a demonstration at the MNC so its employees can taste TeaTree’s beverages and provide their feedback. Obtaining the permission to provide a demonstration of his vending machine is a(n)for Andrew’s sales call.