The test passes if clicking the links in the test, or activating them with the keyboard, makes the links green in exactly the same way.
IE8 Mode and IE9 Mode (All Versions)
Link C does not turn green and none of the links change to green when they are activated with the keyboard.
The test case fails because the test assumes that the span element and the link cannot both be in the active state.
For more information, see http://lists.w3.org/Archives/Public/public-css-testsuite/2010Dec/0149.html