What is the purpose of the service, OpenSSH 5.3 (protocol 2.0), which runs on port 22?

What is the purpose of the service, OpenSSH 5.3 (protocol 2.0), which runs on port 22?
A . connect to the remote shell of IBM Spectrum Protect Plus
B . manage certificates and licenses in IBM Spectrum Protect Plus
C . perform backup and restore of the catalog in IBM Spectrum Protect Plus
D . discover VADP proxies in IBM Spectrum Protect Plus

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Answer: A