Which conditions makes social loafing more likely to occur?

Conditions that lead to social loafing can include over sized work groups, lack of task delineation, and rules of workload. Large groups tend to allow some individuals to let their groups do the work for them. Not having a specific task can discourage some workers when others might be more motivated to tackle the problem at hand. Not requiring a certain amount of participation means that students aren't held accountable for their part in the final product.

The answer is the third one or c