Consider the following html snippet
• Firefox
• Google Chrome
• Internet Explorer
• Opera
• Safari
Which CSS selector is a valid statement to select Opera?
a) css = li.contains("Opera")
b) css = ul.li(4)
c) css = ul > li:nth-of-type(4)
d) css = ul > li:nth-of-type(3)
e) css = ul.li:nth-child(4)
