正解:A
Eavesdropping is an electronic attack where digital communications are intercepted by an individual whom they are not intended1. This is a confidentiality concern because it violates the principle of limiting access to information to authorized people only. Confidentiality is a set of rules that limits access to information1. Eavesdropping can compromise the secrecy of the information and expose sensitive data to unauthorized parties. Reference:
Confidentiality, Integrity & Availability Concerns | CompTIA IT Fundamentals FC0-U61 | 6.1