What does the OSI Presentation layer (Layer 6) do, and what are two concrete modern examples of its functions?

• A.The Presentation layer is responsible for TCP session establishment and teardown.
• B.The Presentation layer handles data translation, compression, and encryption so applications can exchange information in a common format. Examples: (1) TLS/SSL encryption/decryption of application data; (2) MIME encoding/decoding of email attachments (Base64); character set translation (ASCII to EBCDIC) is the classic textbook example.
• C.The Presentation layer defines MAC addresses and Ethernet framing.
• D.The Presentation layer controls IP routing and addressing between different networks.