Final Answer:
The tool that uses the least number of steps to remove the single color surroundings from an image is the Magic Wand tool.
Step-by-step explanation:
The Magic Wand tool is designed to quickly select areas of similar color in an image. By clicking on a single color in the surroundings, the Magic Wand tool can efficiently select and remove that color and its contiguous pixels in just a couple of steps. This tool is particularly useful for eliminating background colors or isolating specific elements in an image without intricate manual selection. Its simplicity and effectiveness make it a preferred choice when aiming to remove a single color from an image with minimal effort.
In contrast, other tools like the Brush or Lasso might require more intricate and time-consuming steps to achieve a similar result, making the Magic Wand tool the optimal choice for this task.