Answer:
In Email's Subject Line “Re:” most commonly understood as “Reply/Response” to an Email. “Re: ” is not taken as abbreviation of Regards/Reference. For Reference, Abbreviation is “Ref.”Explanation:
For effective communication to occur, everyone must trust and respect each other. ... Clear and concise communication will allow your colleagues to understand and then trust you. As a result, there will be more cooperation and less conflict in the workplace.