Your FTP server has been under attack, and the ISP of the attacker has been less than helpful in mitigating the attacks. So you decide that all connections from that ISP (badguy.example.org) to your FTP server will be denied and sent a message. Which line in your /etc/hosts.allow will have the desired effect?
A. in.ftpd : .badguy.example.org : twist 450 denied due to numerous attacks from this domain
B. ftp : badguy.example.org : DENIED message 450 denied due to numerous attacks from this domain
C. in.ftpd : badguy.example.org : spawn echo 450 denied due to numerous attacks from this domain
D. ftp : .badguy.example.org : DENIED due to numerous attacks from this domain
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