Which statement is true?

Examine the memory-related parameters set in the SPFILE of an Oracle database:

Which statement is true?

A.
Only SGA components are sized automatically.

B.
Memory is dynamically re-allocated between the SGA and PGA as needed.

C.
The size of the PGA cannot grow automatically beyond 500 MB.

D.
The value of the MEMORY_TARGET parameter cannot be changed dynamically.