Arectangular window is topped with a semicircle on top. the height of the rectangular part is 1 more than 3 times its width , w meters which function represents the total area? a.) a(w) = w(1 + 3w) + pi(w/2)^2 b.) a(w) = w(1 + 3w) + pi(w/2)^2/2 c.) a(w) = w(1 + 3w) + pi(w)^2/2 d.) a(w) = w(1 + 3w) + pi(w)^2