Which two statements are true about these parameters after the database instance is restarted?

You set the following parameters in the parameter file and restarted the database:
MEMORY_MAX_TARGET=0 MEMORY_TARGET=500M

PGA_AGGREGATE_TARGET=90M SGA_TARGET=270M Which two statements are true
about these parameters after the database instance is restarted? (Choose two.)

A.
The lower bounds of PGA_AGGREGATE_TARGET and SGA_TARGET
parameters are set to 90 MB and 270 MB, respectively.

B.
The value of the MEMORY_MAX_TARGET parameter remains zero until it is
changed manually.

C.
The PGA_AGGREGATE_TARGET and SGA_TARGET parameters are
automatically set to zero.

D.
The MEMORY_MAX_TARGET parameter is automatically set to 500 MB.