A rock is thrown into a calm lake. causing ripples to form in concentric circles. The radius, in feet, of the outer ripple is, r(t)=0.8t, where t is the number of seconds after the rock hit the water. The area of the circle is given by the function A(r)=r²

^{A) Find (A o r)(t)}

^{B) What is the area of the outer ring after 6 seconds?}

^{C) Explain the meaning in the context of the scenario.}