Which amplifiers drive video, computer graphics, and stereo audio over extended distances?

The correct choice is line drivers as they are specifically designed to transmit video, computer graphics, and stereo audio signals over longer distances without significant loss of quality. Line drivers enhance the signal strength, enabling it to cover greater distances without degradation, which is crucial in audio-visual applications where maintaining clarity and fidelity is essential.

In contrast, gain typically refers to the amplification level of a signal but does not specifically address the need for driving signals over long distances. Matrix switchers serve a different function; they manage multiple input and output sources but do not necessarily amplify or drive signals over long distances. Peaking refers to enhancing certain frequencies or aspects of the signal but does not encompass the broader requirement of driving video and audio over extended lengths. Thus, line drivers are the appropriate choice for this purpose.