If the Manager's Beliefs Are All True,which of the Following

Multiple Choice

If the manager's beliefs are all true,which of the following must also be TRUE?

A) If the employees make valuable contributions during a staff meeting, then that meeting will be successful.
B) If the employees are in positive moods during a staff meeting, then that meeting will be successful.
C) If the employees did not make valuable contributions during a staff meeting, then they must have been in negative moods.
D) If the employees do not make valuable contributions during a staff meeting, then that staff meeting cannot be successful.
E) If the employees are not in positive moods during a staff meeting, then they will not make valuable contributions during that staff meeting.