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＞