Final answer:
Emotion work is indicated by suppressed emotional reactions, where an individual manages and often suppresses true feelings to fit social expectations.
Step-by-step explanation:
The statement that would indicate that emotion work is taking place is b) Suppressed emotional reactions. Emotion work involves managing and sometimes suppressing one's true feelings to fit the expectations of a social situation. For example, a customer service representative might suppress their annoyance to appear friendly to a customer, thereby engaging in emotion work.
This contrasts with a collective expression of joy, which is more about shared emotions in a group. Open communication of feelings would typically not involve suppressing emotions, which is central to emotion work. Lastly, a lack of emotional involvement does not illustrate the active process of managing feelings that defines emotion work.