Answer:
Email A is completely out of its place. It sounds like an angry teenager wrote it. It sounds effortless and is completely unfit for a work place because of it. For example, "DUDE!" and "YOU NEED TO FIX THIS RIGHT AWAY" have unnecessary capitals, and "I totally worked overtime last pay period!!!!" has one too many exclamation points. Email B, however, is more sophisticated and is written in an orderly, calm manner. This is more suited for work due to its maturity and calmness compared to email A. The person writing email B is thoughtful and has manners, unlike the person writing email A. Email B also doesn't sound like it was at all rushed, but email A does sound like it was extremely rushed. Because he or she is probably angry or panicking, email A sounds completely unprofessional.