Graph the circle below by moving the key point. The equation of the circle is x² + y² = 16. To graph the circle, drag the center point to the desired location, and then drag the radius point until the radius is the desired length. Which of the following options correctly describes the process of graphing a circle?

A. Move the key point to the desired location and adjust the radius point until the radius is correct.
B. Drag the center point to the desired location and adjust the radius point until the radius is correct.
C. Adjust the center point until the radius is correct, and then drag the radius point to the desired location.
D. Drag the radius point to the desired location and adjust the center point until the radius is correct.