This is probably because most people don't really care about why you're sending the email. They just to know what you'd like or what question you have. That's just my guess.
One of Satan's main problems in the book written by John Milton, "Paradise Lost" is that God can turn evil deeds to his own good ends. This problem motivates Satan by continuously thinking of ways to solve this problem and looking at other possible angles on how to attack the problem.
The actual correct answer is:
C.) It can create tension, mystery, and surprise.
C. My English teacher gave me a million and one pages to read tonight!
