Paula is evaluating options for her salespeople to connect with physicians working at clinics to promote key pharmaceutical products. In the past, they always went to the clinics and set ip displays in a conference roon so they could have a few moments of face-to-face time with the physicians. She is considering a less costly approach where the sales reps would videoconference with the physicians instead. Some of the costs she gathered are listed below. Classify cach cost as relevant or irrelevant for this decision