Which of the following represents a True Colour image?

A True Colour image is defined as an image that can represent a vast array of colors, specifically using the RGB color model. This model combines red, green, and blue light in varying intensities to create a full spectrum of colors. In a True Colour image, each of these color components is typically allocated 8 bits, allowing for 256 different values for each color channel.

When combining the three channels (red, green, and blue), the total becomes 24 bits (8 bits for red, 8 bits for green, and 8 bits for blue). This results in a possible 16,777,216 distinct colors (256 x 256 x 256 = 16,777,216), providing a rich and detailed color representation necessary for most photographic and graphic images.

While 32 bits can also represent True Colour images, it usually includes an additional 8 bits for an alpha channel used for transparency, which is not strictly required for the definition of True Colour. Therefore, the most accurate representation of a True Colour image, focusing solely on the color data without additional channels, is indeed 24 bits.