What option is utilized to specify modifications to the canvas in a graphics editing program?

In graphics editing programs, the option that specifies modifications to the canvas is typically cropping. Cropping allows users to remove unwanted outer areas from an image, thereby altering the canvas size and focusing on a specific part of the image. This is essential in various applications where the intent is to enhance composition or eliminate distractions, making it a fundamental feature in photo editing.

While resizing adjusts the overall dimensions of the image as a whole, it does not necessarily focus on removing parts of the canvas or altering its content strategically as cropping does. The other options, such as masking and anchoring, serve different purposes in image editing, like controlling visible areas or stabilizing an element on the canvas, rather than directly modifying the canvas size itself.