After dealing with a barrage of hate mail from a disgruntled customer who wanted a sale? adjusted, Adele responded with abusive language. The worst thing about this is it could result in? ________.
A. a poor performance review for Adele
B. a note on? Adele's employment record
C. the customer accusing Adele of defamation
D. the customer becoming a laughing stock at the company
E. Adele being sent to take a remedial course in customer relations