单选题

下面的XML片断中结构完整的是()。

A<customer name=”<xml>.con”><address>123 MainStreet></address></customer>

B<customer><name>Joe’s XML Works</name><address>New York</costomer>

C< customer type=extemal><name>Partners Unlimited</name></customer>

D<customer name=”John Doe”><address>123 Main Street</address> <zip code=”01837”/></customer>

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