Answer:
The correct answer is letter b. social loafing.
Explanation:
In social psychology, the term social loafing describes a phenomenon that takes place when individuals work in a group instead of on their own. Social loafing is the tendency people show to exert less effort when working with others. This phenomenon explains why sometimes groups are less efficient and less productive than if the individuals were to work on their own and be responsible for their own productivity. That is the case with Michelle. Now that the group is larger, she is making less effort, being "content to sit back and let others do the work".
