In radish seedlings, assume the two genes assort independently and show complete dominance. Trait key: D = deep roots, d = shallow roots; E = even leaf edges, e = serrated leaf edges. Here A_B_, A_bb, aaB_, and aabb are generic phenotype-class labels: dominant-dominant, dominant-recessive, recessive-dominant, and recessive-recessive. Which observed result from 160 offspring of DdEe x DdEe is closest to the independent-assortment model?