Responding to an email message in an angry, emotional tone is:
A) Spamming, which is unacceptable.
B) Phishing, which is acceptable.
C) Flaming, which is unacceptable.
D) Replying, which is acceptable.
Spamming would not make sense in this situation. Phising is illegal. Finally replying is acceptable as long as its kept business formal with whom the email may inquire to.