Which of the following best describes a Data Loss Prevention Solution?

Prevents access to and transmission of protected files based upon predefined rule sets

Network$-$based device that modulates carrier waves to encode digital data for transmission then demodulates the signals to decode the transmitted information

Operates at the Session Layer $($Layer $5)$ to monitor the TCP handshake between packets to determine if the session is legitimate.

Maintains state information from one packet to another in the input stream to determine threats and grant access according to information from multiple packets.