Which of the Following Is True About the Preview Page

Which of the following is true about the Preview Page view?

A) Certain features,such as the Scrolling Marquee,that do not function in the Design Page view,work in the Preview Page view.
B) It shows both the code and the design views of the page on one screen.
C) It shows you how your page will look in a browser.
D) It is a working environment,not a testing environment.