Refer to the exhibit. On R2 there is a summary route for 192.168.1.0/24 with a next hop of R4. Which change will cause R2 to prefer a path through R1 to reach 192.168.1.0/24? 

Answer options:

A. convert Area 1 to a stub area and decrease the cost between R1 and R3 to 1
B. create a virtual link between R1 and R2
C. create a virtual link between R1 and R2 and decrease the cost between R1 and R3 to 1
D. change the link between R1 and R2 to Area 0

C