YouaremaintainingyourdatabaseinOracle10g.Youarenotusingtherecoverycatalogtomaintainthebackupmetadatainformation.Youwanttoenablethereusablesectionofthecontrolfiletoexpanditselfiftheoldestrecordcannotbereused，andwheneveranewrecordisaddedtothereusablesection
题目
YouaremaintainingyourdatabaseinOracle10g.Youarenotusingtherecoverycatalogtomaintainthebackupmetadatainformation.Youwanttoenablethereusablesectionofthecontrolfiletoexpanditselfiftheoldestrecordcannotbereused，andwheneveranewrecordisaddedtothereusablesectionofthecontrolfile.WhichvaluewillyousetfortheCONTROL_FILE_RECORD_KEEP_TIMEparameter？（）
A.Zero
B.Oneormore
C.NONE
D.DEFAULT