单项选择题

A.Someusersgenerateapplicationreportsbyusingmultipleapplicationtables.Whatisthebesttablestructurethatyoucanusetogainoptimalperformance?()
A.Heaptable
B.Objecttable
C.Externaltable
D.Clusteredtable
E.Globaltemporarytable
F.Index-organizedtable(IOT)