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 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