What should the Level 2 support provider do upon escalation to IBM Tivoli Support?

A.
Ask the customer to contact IBM Tivoli Support directly.

B.
Remain the owner of the issue and work with IBM Tivoli Support.

C.
Provide all must gather information to IBM Tivoli Support and close their internal ticket.

D.
No longer interface with the customer as IBM Tivoli Support is now the primary contact.