Which of the following protocols would be used for file sharing between MAC OS and Windows OS workstations on a LAN?

IMAP (Internet Message Access Protocol) is an email retrieval protocol used by mail clients to access messages on a mail server, not for file sharing.

SMB (Server Message Block) is the native file sharing protocol for Windows and is also natively supported by macOS, allowing seamless file sharing between the two operating systems on a local area network. macOS has included SMB client and server support since OS X Mountain Lion, making it the standard protocol for this mixed-OS scenario.

SSH (Secure Shell) provides encrypted remote terminal access and can transfer files via SCP/SFTP, but it is not a standard LAN file sharing protocol comparable to SMB.

RDP (Remote Desktop Protocol) is a Microsoft protocol for graphical remote desktop sessions and does not provide general-purpose file sharing between operating systems.