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.
lowercase

B.
20px

C.
line-through

D.
italic

Explanation:
CSS Syntax
text-transform: none|capitalize|uppercase|lowercase|initial|inherit;
Example
Transform text in different elements:
h1 {text-transform:uppercase;}
h2 {text-transform:capitalize;}
p {text-transform:lowercase;}
CSS text-transform Property
http://www.w3schools.com/cssref/pr_text_text-transform.asp