Is the following description of ospf virtual links correct?

exams H12-891_V1.0-ENU V2 H12-891_V1.0-ENU exam 0 Comments

Is the following description of ospf virtual links correct?
A . A virtual connection can be established in any area, after which it itself belongs to the region
B. The virtual connection ip is used as the link address
C. Virtual links can be used to solve the problem of zone 0 being segmented
D. The cost of a virtual connection is zero and is the optimal link

Answer: C