Final answer:
The rounded circles on an object that allow adjustment of its shape are called corner widgets, which round the corners of the object. so, option D is the correct answer.
Step-by-step explanation:
The rounded circles on an object in graphic design or software that you can interact with to adjust attributes are called corner widgets. Specifically, these allow the user to modify the shape of an object, generally rounding the corners of a rectangle or squaring off otherwise circular elements. The correct answer to the question of what the rounded circles are called on an object is D: They are corner widgets and they round the corners of the live object.
The rounded circles on an object are called corner widgets and they round the corners of the live object. These widgets are commonly used in graphic design and computer software to give objects a smoother and more visually appealing appearance. For example, in graphic design software like Adobe Illustrator, you can use corner widgets to round the corners of a rectangle, giving it a softer look.