Final answer:
A man-in-the-middle attack in the context of a wireless LAN involves intercepting and potentially altering communications between devices, often facilitated by creating a rogue access point.
Step-by-step explanation:
A man-in-the-middle attack on a wireless local area network (LAN) is c) An attack that intercepts and alters communication between devices. This type of cyberattack occurs when an attacker secretly relays and possibly alters the communication between two parties who believe they are directly communicating with each other. For example, on a wireless LAN, an attacker might create an unauthorized access point that mimics a legitimate one, tricking devices into connecting through it. Devices connected to this rogue access point can have their data intercepted, and sensitive information might be captured or manipulated.