A new Backup Connection is being deployed on a remote site router. the stability of the connection has been a concern. in order to provide more information to EIGRP Regarding this interface， You wish to incorporate the "Reliability" cost metric in the EIGRP Calculation with the command metric weights 1 0 1 0 1. What impact will this modification on the remote site router have for other existing EIGRP neighborships from the same EIGRP Domain？（）
- AExisting Neighbors will immediately begin using the new metric.
- BExisting Neighbors will use the new metric after clearing the EIGRP Neighbors.
- CExisting Neighbors will resync， maintaining the neighbor relationship
- DAll ecisting neighbor relationships will go dow