HTML 5 Part I

Which of the following responses displays a working link to a well known search engine?
 <a address="http://www.google.com">Google</a>
 <ul><li>"http://www.google.com"</li></ul>
 <a href="http://www.google.com">Google</a>
 <address goto="http://www.google.com">Google</address>
 <link goto="http://www.google.com">Google</link>