What does PKI use to provide some of the strongest overall control over data confidentiality, reliability, and integrity for Internet transactions?

A. A combination of public-key cryptography and digital certificates and two-factor authentication

B. A combination of public-key cryptography and two-factor authentication

C. A combination of public-key cryptography and digital certificates

D. A combination of digital certificates and two-factor authentication

Explanation:

PKI uses a combination of public-key cryptography and digital certificates to provide some of the strongest overall control over data confidentiality, reliability, and integrity for Internet transactions.