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Which action occurs when the BGP route 20.1.0.0/16 is evaluated by the policy expression？（）
[editpolicy-options] 
policy-statementreject_10 { 
from{ 
route-filter20.1.0.0/16orlongerM 
} 
then{ 
communityadd 90-1； 
accept 
}} 
policy-statementaccept_20 { 
from{ 
route-filter20.1.0.0/16orlongerM 
} 
then{ 
communityadd 100-1； 
reject； 
} 
} 
community100-1 members 100：1； 
community90-1 members 90：1 
[editprotocols] 
bgp{ 
groupebgp-group { 
neighbor172.16.201.1 { 
export（reject-10 && accept-20）； 
}}}

Which action occurs when the BGP route 20.1.0.0/16 is evaluated by the policy expression？（）
[editpolicy-options] 
policy-statementmy-filter { 
term-first{ 
from{ 
route-filter192.168.0.0/16orlongeraccept； 
route-filter 192.168.1.0/24 exact accept； 
route-filter 192.168.2.0/24 exact； 
} 
then{ 
metric10； 
accept； 
} 
termsecond { 
then{ 
metric20； 
accept； 
}} 
policy-statementmain { 
termchange-attributes 
from{ 
policymy-filter； 
} 
thenaccept； 
} 
termdefault { 
thenreject； 
}} 
[editprotocols] 
bgp{ 
exportmain； 
}