Observe the information in the columns： 
1： The SGA     a. Text and parsed forms of all SQL statements 
2： The cursor state   b. Run-time memory values for the SQL statement， such as rows retrieved 
3： User-session data   c. Security and resource usage information 
4：The stack space   d. Local variables for the process 
Which option has the correct match between the memory areas and their contents（）

A.1-c，2-b，3-d，4-a
B.1-c，2-b，3-c，4-a
C.1-a，2-b，3-c，4-d
D.1-a，2-b，3-d，4-c