Why Do the Social Loafing and Free Rider Effect Say

Multiple Choice

Why do the social loafing and free rider effect say that the same individual will do less work in a group than on their own?

A) The more talented people in the group don't want them to drag them down so they push them aside
B) There is no one else to take responsibility or be held accountable for your work when you are working on your own
C) Everyone does less work in a group than on their own because there are more people to distribute the tasks
D) Peer pressure doesn't exclude them when they are working individually