1 point) In evaluating a double integral over a region D, a sum of iterated integrals was obtained as follows: f(x, y) dxdy 3 2 6-3y f(x, y) dxdy + f(x, y) dxdy Jo Jo h(x) with The region D can be written the form A A= g(x) = x S B, gx) S y S B= h@) =