I think some kind of questions have many of right answers.
The answers are up to the person who is answering the questions, and it does depend on that person's knowledge and point of view.
Maybe the answer of the question you've asked is existed but none of the answerers do it right.
But don't be worriyd so much about the answer because I think we just want to know what's is your attitude and response to the quesrtion.
