Answer:
Extra - less.
Step-by-step explanation:
Members of an in-group group of people are those who identify with each other based on factors such as gender, religion, race, geographical identity, etc. They share an identity or a moral compass which makes work among them easy in terms of confidence, trust and sharing. Their leader, as the exercise says, does more for the group and the group does more for them.
In an out-group, as the exercise says, people tend to just do their work and that's it. It's the opposite of the in-group: they don't share an identity. They do the work and go home.