Refer to the exhibit. Which action must be taken to ensure that router A is elected as the DR for OSPF area 0?

A. Configure the router A interfaces with the highest OSPF priority value within the area
B. Configure router B and router C as OSPF neighbors of router A
C. Configure the OSPF priority on router A with the lowest value between the three routers.
D. Configure router A with a fixed OSPF router ID