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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

Explanation:

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