Which parameter must be set to which value to implement automatic PGA memory management? 

Answer options:

A. Set memory_target to zero.
B. Set STATISTICS_LEVEL to BASIC.C. Set pga_aggregate_target to a nonzero value.
D. Set pga_aggregate_target and sga_target to the same value.
E. Set sgajtarget to zero.

C

Reference: http://docs.oracle.com/cd/B28359_01/server.111/b28310/memory004.htm#ADMIN11233