Whats group responsibility mean.. plz read sentence i need 2 kno relly bad atleast give explanation?

Question

There is a good mix of students/backgrounds/levels and getting along with each other is considered a group responsibility

Answer 1

Getting along with each other is the responsibility of the entire group.

Answer 2

Think of it this way, personal responsibility is your obligation to do something/perform a specific task so group responsibility is the need of a group of people to fulfil some obligation, in this instance maintaining a good relationship