Which of the following protocols uses a combination of public key and symmetric encryption to provide communication privacy, authentication, and message integrity for secure browsing on the Internet?

MS-CHAP v2 is a challenge-response authentication protocol used for dial-up and VPN connections; it does not provide general web browsing privacy or use public key encryption for that purpose.

WEP (Wired Equivalent Privacy) is a deprecated wireless LAN encryption standard based on RC4; it is not a protocol for securing Internet browsing sessions.

SSL uses public key (asymmetric) cryptography during the handshake to authenticate the server via digital certificates and to securely negotiate a shared session key. It then switches to faster symmetric encryption for the actual data transfer, providing confidentiality. A message authentication code (MAC) is also applied to each record to ensure integrity, satisfying all three properties named in the question.

EFS (Encrypting File System) is a Windows OS feature for encrypting files stored on disk using the NTFS file system; it operates at the file level and is not a network communication protocol.