You are a help desk trainee for YourDomain.com. You are learning Cisco material: Voice traffic on an IP network has strict requirements concerning packet loss, delay, and delay variation (also known as jitter). To meet these requirements for voice traffic, the Cisco Wireless IP Telephony solution includes Quality of Service (QoS) features such as traffic classification, queuing, and shaping.
So, as you know, who would most likely be the key decision-maker of QoS implementations?

A.
financial manager

B.
system administrator

C.
telecommunications manager

D.
key manager