Youwanttomakeuseoftheobjectfeaturesavailableinthedatabasefortheformmoduleyouaredeveloping.Whichthreestatementsaboutobjecttypesaretrue?()

A.Anobjecttypeisauser-definedcompositedatatype.

B.Theattributesofanobjecttypecanbethoseofotherobjecttypes.

C.APL/SQLtableofrecordsisanexampleofanestedobjecttype.

D.Anobjecttypemustbedeclaredasatypebeforetheactualobjectitselfcanbedeclared.