Which of the log messages below matches the following Logstash grok filter? grok { match => ["message", "%{SYSLOGBASE} new node %{IPORHOST:node}" ] }
A. Jun 30 00:36:49 headnode: new node 198.51.100.103 at clustermanager:12353
B. Jun 30 00:36:49 headnode clustermanager[12353]: new node 198.51.100.103
C. Jun 30 00:36:49 headnode clustermanager[198.51.100.103]: new node
D. %{SYSLOG-FROM:headnode clustermanager[12353]} new node 198.51.100.103
E. clustermanager[12353]: Jun 30 00:36:49 headnode new node 198.51.100.103
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