【单选题】
Which action occurs when the BGP route 20.1.0.0/16 is evaluated by the policy expression？（）<br /> [editpolicy-options] <br /> policy-statementmy-filter { <br /> term-first{ <br /> from{ <br /> route-filter192.168.0.0/16orlongeraccept； <br /> route-filter 192.168.1.0/24 exact accept； <br /> route-filter 192.168.2.0/24 exact； <br /> } <br /> then{ <br /> metric10； <br /> accept； <br /> } <br /> termsecond { <br /> then{ <br /> metric20； <br /> accept； <br /> }} <br /> policy-statementmain { <br /> termchange-attributes <br /> from{ <br /> policymy-filter； <br /> } <br /> thenaccept； <br /> } <br /> termdefault { <br /> thenreject； <br /> }} <br /> [editprotocols] <br /> bgp{ <br /> expo
A、The route is not advertised into BGP
B、The route is advertised into BGP with metric 10.
C、The route is advertised into BGP with metric 20.
D、The route is advertised into BGP with default metric.
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