Terry Is Building a Web Site and Wants to Have

Terry is building a web site and wants to have three main links called Home, Product Info, and Contact Us. She will create a hierarchy of page elements and revise the style sheets.
-Terry has decided to display the text of all h1 headings found within the page header in green.The style rule applied should be _____.

A) header h1 {shade: green;}
B) header h1 {green: shade;}
C) header h1 {green: color;}
D) header h1 {color: green;}