【单项选择题】
The Automatic Database Diagnostic Monitor （ADDM） analysis runs every 60 minutes on your database. Your database is facing a series of interrelated problems over a period of two hours. You need to ensure that the ADDM analysis is run over a time span of two hours in future. <br /> What would you do？（）<p> The Automatic Database Diagnostic Monitor （ADDM） analysis runs every 60 minutes on your database. Your database is facing a series of interrelated problems over a period of two hours. You need to ensure that the ADDM analysis is run over a&
A、A. Create two custom ADDM tasks.
B、B. Modify the AWR snapshot time interval to two hours.
C、C. Create a new scheduler window for a time period of two hours.
D、D. Modify the Automatic Workload Repository （AWR） snapshot retention period to two hours.
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