Some body told me the answer is B. The reason is from here(https://docs.servicenow.com/bundle/xanadu-customer-service-management/page/product/customer-service-...
But the doc page only explain the customer（B2B） case. And didn't explain the Consumer（ individual ）case.
Could somebody tell me about External customers can view the problem, change, and request records associated with their customer service cases from the Customer Service Portal?
Here the question is.
External customers can view the problem, change, and request records associated with their customer service cases from the Customer and Consumer Service Portals.
Which of the following can they approve in relation to cases via the portals?
A. Request Records and Escalations
B. Change Records and Request Records
C. Problem Records and Escalations
D. Problem Records and Incident Records
