I Believe The Correct Answer Is A. Oceanic crust is thicker and more dense than continental crust.
I know for sure that oceanic crust is more dense than continental crust, but I am not sure about the thinness or thickness, so the answer is either A or C (most likely A).
Let's say the given area is 7.065 inches squared for the quarter circle. To find the radius, you first multiply the 7.065 by 4. You get 7.065 * 4 = 28.26.