單項選擇題

You recently created a database and configured the SPFILE with the following parameter settings to ensure that Oracle automatically adjusts the memory for the Program Global Area (PGA):  
SORT_AREA_SIZE = 150M  
HASH_AREA_SIZE = 150M  
BITMAP_MERGE_AREA_SIZE = 150M  
CREATE_BITMAP_AREA_SIZE = 150M  
WORKAREA_SIZE_POLICY = AUTO  
You have not included the PGA_AGGREGATE_TARGET initialization parameter in the SPFILE and the System Global Area (SGA) is currently sized at 4G.  
What is the total PGA memory allocated across all database server processes?()  

A. 10M
B. 400M
C. 600M
D. 800M

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