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The correct answer is D.

OBJ-1.5: Session Initiation Protocol (SIP) uses ports 5060 and 5061, and is a signaling protocol for initiating, maintaining, and terminating real-time sessions that include voice, video, and messaging applications. Post Office Protocol version 3 (POP3) uses port 110 and is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server. Server Message Block (SMB) uses ports 139 and 445, and is a network file sharing protocol that runs on top of the NetBIOS architecture in Windows environments. MySQL uses ports 3306 and is an open-source relational database management system that is fully compatible with the structured query language (SQL).

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