A PL/SQL procedure queries only those columns of a redefined table that were unchanged by the online table redefinition. What happens to the PL/SQL procedure after the online table redefinition？（）
- A It remains valid.
- B It becomes invalid for all options of online table redefinition but automatically gets revalidated the next time it is used.
- C It becomes invalid for all options of online table redefinition and is automatically recompiled during online redefinition of the table.
- D It becomes invalid only if the storage parameters have been modified and it automatically gets revalidated the next time it is used.