Which of These Statements About Emotional Labour Is FALSE

Which of these statements about emotional labour is FALSE?

A) Most jobs involving customer service require some degree of emotional labour.
B) Research indicates that emotional display rules and standards are very similar around the world.
C) Emotional labour increases with the extent to which employees must abide by emotional display rules.
D) In spite of the presence of emotional display rules,it is difficult to hide our true emotions.
E) Display rules are norms requiring employees to display certain emotions and withholding others.