Which of the following statements regarding OSPF routing updates on a point-to-point link is true?

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• AOn a point-to-point link, there is no need for a DR and BDR election; all routing updates are sent to 224.0.0.5.
• BOn a point-to-point link, a DR and BDR are elected. The DR sends link-state advertisements describing the network.
• COn a point-to-point link, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.
• DOn a point-to-point link, there is no need for a DR and BDR election. All routing updates are sent to the unicast address of the neighbor's interface.

• A
  83% (29)
• B
  3% (1)
• C
  6% (2)
• D
  9% (3)

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