Final answer:
The correct answer is Cookies. Browsers, forms, and links are examples of WebApp interface mechanisms. Cookies are used for tracking user preferences and session information.
Step-by-step explanation:
The correct answer is Cookies.
A WebApp interface mechanism is a tool or feature that allows users to interact with a web application. Browsers, forms, and links are all examples of WebApp interface mechanisms.
Cookies, on the other hand, are small pieces of data stored on a user's computer by websites. While cookies are used to enhance user experience and provide personalized content, they are not considered a direct WebApp interface mechanism. Instead, they are a method for tracking user preferences and session information.