Final answer:
For a 960 pixels width layout, the height is best described as variable since the options provided don't fit the common 16:9 aspect ratio. In a 16:9 ratio, a width of 960 pixels would yield a height of 540 pixels, which is not listed among the options.
Step-by-step explanation:
When discussing a 960 pixels layout in terms of height, the correct choice should match a common aspect ratio used in screens and video formats. While 960 pixels represent the width of the layout, the height can vary depending on the aspect ratio. The options provided are:
- 480 pixels
- 720 pixels
- 1080 pixels
- Variable height
The common aspect ratio for computer screens, televisions, and video content is 16:9. If we maintain this aspect ratio with a width of 960 pixels, the math calculation would be 960 / (16/9) = 540 pixels. However, this option is not listed, so the provided answers don't seem to respect the 16:9 ratio. If we are to choose the best fitting height, we should consider the closest to the expected outcome. Therefore, the best answer would be that the height is variable, which can accommodate the 16:9 aspect ratio or any other depending on the specific design or content requirements.