Which value is valid for the text-transform property?

You are developing an HTML5 web application and are styling text.
You need to use the text-transform CSS property.
Which value is valid for the text-transform property?

A.
Italic

B.
Line-through

C.
Capitalize

D.
20px

Explanation:

http://www.w3schools.com/cssref/pr_text_text-transform.asp
none,capitalize,uppercase,lowercase and inherit
Example
Transform text in different elements:

h1 {text-transform:uppercase;}
h2 {text-transform:capitalize;}
p {text-transform:lowercase;}