Which of the following statements is true about a router's eBGP peers that is not  also true about that same router's iBGP peers?（）

• A、The eBGP peer neighborship uses TCP
• B、The eBGP peer uses port 180 (default)
• C、The eBGP peer uses the same ASN as the local router
• D、The eBGP peer updates its AS_Path PA before sending updates to  this router