Explanation:

Let's evaluate each option:

1. TLS (Transport Layer Security): A widely deployed security protocol that provides communications security over a computer network.

2. SSL (Secure Sockets Layer): An older cryptographic protocol designed to provide communications security over a computer network, now succeeded by TLS.

3. IPsec (Internet Protocol Security): A suite of protocols for securing internet protocol (IP) communications by authenticating and encrypting each IP packet in a data stream.

4. MIME (Multipurpose Internet Mail Extensions): Not a security protocol; it is used to extend the format of email to support text in character sets other than ASCII, as well as attachments, and does not inherently provide security features.

Option 4 (MIME) is the correct choice