Which of the Following Individuals Is Most Likely to Engage

Which of the following individuals is most likely to engage in social loafing?

A) Phoebe, who works with her classmates on a difficult group assignment
B) Troy, who has to write the forward of a novel he did not write
C) Tim, who washes a car with his friends
D) Danny, who struggles alone with a difficult calculus problem
E) Amanda, who sits alone in her office, licking stamps and placing them on envelopes