WhichactionoccurswhentheBGProute20.0.0\/16isevaluatedbythepolicyexpression？（）[editpolicy-options]policy-statementmy-filter{term-first{from{route-filter192.168.0.0\/16orlongeraccept；route-filter192.168.0\/24exactaccept；route-filter192.168.2.0\/24exact；}then{metric10；accept；}termsecond{then{metric20；accept；}}policy-statementmain{termchange-attributesfrom{policymy-filter；}thenaccept；}termdefault{thenreject；}}[editprotocols]bgp{exportmain；}
A.TherouteisnotadvertisedintoBGP
B.TherouteisadvertisedintoBGPwithmetric10.
C.TherouteisadvertisedintoBGPwithmetric20.
D.TherouteisadvertisedintoBGPwithdefaultmetric.
参考答案：D
