Concept:The diagram shows a flower part where most reproductive structures are fused, so a feature that mentions an unfused part is the odd one out.Explanation:In this flower type, the style is fused into a single column.The stigma is separate or forked at the tip.The ovary is formed by fused carpels.However, the anthers are joined together into a tube around the style.Thus, the statement "unfused anther" is not correct for the illustrated flower.Answer:D. unfused anther