Final answer:
The width-to-height proportion of a monitor is known as the aspect ratio, which defines how content is displayed on the screen. Aspect ratio does not directly relate to the resolution or pixel ratio.
Step-by-step explanation:
The correct answer to the student's question regarding the width-to-height proportion of a monitor is a) Aspect ratio. An aspect ratio is a term that defines the ratio of width to height in a display. It is crucial when considering how content will be displayed on the screen. For instance, common aspect ratios include 4:3, which was standard for older monitors and TV screens, and 16:9, which is widely used for monitors and modern television screens today.
When working with scales in proportions, such as a map or model, you would use a unit scale to set up proportions. This involves comparing the size of an image or model to the actual object, much like how the aspect ratio compares the width and height of a display. However, aspect ratio does not necessarily correlate to the resolution ratio or pixel ratio, which describe different attributes of a display. The resolution ratio is about the number of pixels on the screen, and the pixel ratio refers to the density of pixels in an image.