Social Loafing Is Most Likely to Occur When

Social loafing is most likely to occur when

A) an improvisational comedy troupe performs.
B) a team of computer scientists works on different sections of code to locate and correct errors in a program.
C) a group is performing a task on which they will be individually evaluated.
D) a team of volunteers stuffs envelopes for a large mailing.
E) candidates for city council engage in a public debate.