Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two.)

Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two.)

Router(config)# router ospf 1 –

• A. All OSPF routers in an area must have the same process ID.
• B. Only one process number can be used on the same router.
• C. Different process identifiers can be used to run multiple OSPF processes.
• D. The process number can be any number from 1 to 65,535.
• E. Hello packets are sent to each neighbor to determine the processor identifier.