xpath question

[manishi]

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What XPath expression will find all page elements that contain child page elements within the following XML fragment? <site> <page id="000"/> <page id="001"> <page id="001_000"> <link target="003_000"/> </page> <page id="001_001"/> </page> <page id="002"/> <page id="003"> <page id="003_000"/> <page id="003_001"/> </page></site> A.//page/page B.//page/@page C.//page[count(*) > 0] D.//page

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I was thinking of answer "D".just based on theory.Please confirm which is the correct answer.Also if anybody knows how to test these then please let me know.

[boen_robot]

You can test XPath expressions by simply creating an XSLT file to style the XML and use the XPath expression in a value-of. How to do that? Normally, I would have offered code, but for your quiz's sake... read.