Answer:
There are some benefit of using a contact group.
Explanation:
An email address collection consists of a contact group (formerly known as a "distribution list."). You can send an E-mail or invitation to meet to all addresses at the same time by using a contact group. In the messages, task requests, requests for meetings, and other contact groups you can include contact groups. Another advantage of contact groups is that they categorize your contacts so that a particular person can be found more easily in future. Depending on how far you want to reach with your contact organization, you can contact one group or more groups
