Which two are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c when it is enabled?

Which two are direct benefits of the multiprocess, multithreaded architecture of Oracle
Database 12c when it is enabled?

A.
Reduced logical I/O

B.
Reduced virtual memory utilization

C.
Improved Serial Execution performance

D.
Reduced physical I/O

E.
Reduced CPU utilization