Which style sheet has the highest priority?

You work as a developer at ABC.com. The ABC.com network consists of a single domain named
ABC.com. You make use of CSS3 and HTML5 for development purposes.
You are in the process of creating a new application, whose pages have styles configured from a
few cascading style sheets.
Which style sheet has the highest priority?

A.
user important style sheets

B.
author important style sheets

C.
regular user style sheets

D.
user normal style sheets

E.
author normal style sheets

Explanation:

http://www.w3.org/TR/CSS21/cascade.html#cascading-order