Related to information security, the guarantee that the message sent is the message received with the assurance that the message was not intentionally or unintentionally altered is an example of which of the following? 

Answer options:

A. integrity
B. confidentiality
C. availability
D. identity

A

Integrity is the guarantee that the message sent is the message received, and that the message was not intentionally or unintentionally altered. Source: KRUTZ, Ronald L. & VINES, Russel
D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 60.