A(n) ______ is a program that extends the capability of a browser.1.0 MarksPlug-inmagnifierpower-upaggregator

The correct answer is Plug-in.

A plug-in is a software component that adds specific features or functionalities to an existing computer program, in this case, a web browser. Plugins are widely used in web browsers to enhance their capabilities, allowing them to display a wider range of content such as videos, music, animations, and interactive elements. For example, a common plug-in might enable a browser to play certain video formats or run specific applications directly within the browser environment. Each plug-in operates as an independent unit that interacts with the browser, thus extending its functionalities without altering the core structure of the browser. Other options like "magnifier," "power-up," and "aggregator" do not accurately describe the function of a browser extension.