A.
< 5.2 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
B.
< 6.2 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
< 7.2 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
D.
< 8.2 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
E.
< 9.2 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>