Agroup of friends getting together for dinner represents a group while a group of people at your work represents a group.

The primary group is being classified to a group of people in small group who have a close bond or share personal bond to each other while the secondary groups are the ones that are group of people in large and share relationship in a goal oriented manner. So in the first space provided, the group of friends is classified as the primary group while the second space provided which are the people in work represents the secondary group. For the group of friends are the ones who you share close bond with that is why it is primary and the people at work are the ones you share with goal oriented and interpersonal bond, that is why it is secondary.

well to answer ur question to be completly honest