【单项选择题】
Given the configuration shown in the exhibit， which statement is true about traffic from host_ato host_b？（）<br /> [edit security policies from-zone HR to-zone trust]<br /> user@host# showpolicy two {<br /> match {<br /> source-address subnet_a；<br /> destination-address host_b；<br /> application [ junos-telnet junos-ping ]；<br /> }<br /> then {<br /> reject；<br /> }<br /> }<br /> policy one {<br /> match {<br /> source-address host_a；<br /> destination-address subnet_b；<br /> application any；<br /> }<br /> then {<br /> permit；<br /> }<br /> }<br /> host_a is in subnet_a and host_b is in subnet_b.<p> Given the configuration shown in the exhibit， which statement is true about traffic from&ensp
A、A.DNS traffic is denied.
B、B.Telnet traffic is denied.
C、C.SMTP traffic is denied.
D、D.Ping traffic is permitted
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