order the choises in my other quetion.?

I'm sorry, but it is difficult to respond seriously to a question that is formed so badly.

So you asked a question poorly (you asked for the first type of science, and that is what people responded). Now, you ask again expecting people to refer back to your previous question instead of putting enough information in this question to get the the information you are looking for.

You could disregard this answer, but you would be missing out on an important message. How do you go about solving a problem? You identify what you know, what you need to know, and determine the computation required to determine what you need to know.

Forming questions properly is step b, determining what you need to know.

By the way, it is c,b,a