What is the primary purpose of the Display Port?

The primary purpose of DisplayPort is indeed as an alternative to DVI and HDMI. DisplayPort was specifically designed to be a high-performance digital display interface, promoting an efficient way to transfer high-definition video and audio signals between a computer and a display. Unlike DVI, which primarily focuses on video, and HDMI, which is often used in home theater setups, DisplayPort supports higher resolutions and refresh rates, making it advantageous for computer monitors. It also incorporates features like support for multiple monitors via a single connection, which is not available with DVI or the traditional use of HDMI.

In contrast, while other options mention aspects related to video and audio, they do not capture the essence of DisplayPort’s primary role. Storing high-definition video is not a function of DisplayPort; it's an interface for transmitting signals. Powering computer graphics cards is also unrelated, as DisplayPort transmits data rather than providing power. Enhancing audio output, although a feature of DisplayPort, is secondary to its main purpose of serving as an alternative display interface, further emphasizing that option B accurately reflects its primary function.