Notethepointsaboutdatadictionaryviewsanddynamicperformanceviews：1.ThesearestoredintheSYSTEMtablespace.2.Thesearethebasedonthevirtualtables.3.TheseareownedbytheSYSuser.4.ThesecanbequeriedbyanormaluseronlyifO7_DICTIONARY_ACCESSIBILTYparameterissettoTRUE.5.V$FIXED_TABLEviewcanbequeriedtolistthenamesoftheseviews.Whichstatementslisteddescribethedatadictionaryviews（）
A.1and3
B.2，3，and5
C.1，2，and3
D.2，3，4，and5
正确答案：参考A
