Joyce is working on a team project at UMB with 4 of her classmates. Joyce is very busy so she does not do her portion of the project and the group gets a C- on it. Joyce rationalizes the grade by observing that there are 5 people in the group and there is no way to attribute the grade to her performance since the other 4 may also have done poorly. Which of the following primary traps in the supplemental reading best describes Joyce's rational? a. time pressure b. tyranny of goals c. lost in the group d. don't make waves