Which of the following carries two independent channels for left and right audio, and creates the impression of sound heard from various directions?

The correct choice is associated with stereo sound signals, as they are specifically designed to carry two independent audio channels—one for the left and one for the right speaker. This configuration allows for a more immersive auditory experience by replicating how sound behaves in the real world, creating the perception of sound originating from various directions.

This synthesis of audio channels is crucial in developing a spatial sound environment, enabling listeners to distinguish between sounds coming from the left, right, or evenly from both sides. Such functionality is essential in music and various audio playback scenarios, enhancing the overall listening experience.

In contrast, mono sound signals consist of a single audio channel, delivering the same sound across all speakers without providing directional cues. Surround sound signals utilize multiple channels (more than two), aiming to create a full immersive experience but expanding beyond the basic left and right positioning. Multichannel sound signals refer to systems that incorporate several audio channels, but this term is broader and does not specifically address the left-right dichotomy integral to stereo audio. Thus, stereo sound signals stand out as the best option for conveying sound directionality through two independent audio channels.