请讲解一下这道题---**Question Stem:** 2025 年 4 月 19 日，全球首个个人形机器人半程马拉松赛事在北京举行。根据赛事要求，参赛机器人须具备人形外观，实现双足行走或奔跑，禁止轮式结构。已知甲企业生产的所有机器人均符合参赛要求，则以下情形一定正确的是（ ） **Chart/Diagram Description:** The image displays four distinct diagrams, each illustrating relationships between different categories using circles (resembling Venn diagrams). * **Diagram ①:** Consists of two separate, non-overlapping circles. * Left circle label: "甲企业机器人" (Robots from Company A) * Right circle label: "非轮式结构" (Non-wheeled structure) * Relationship: Indicates that robots from Company A are a separate category from non-wheeled structures, with no overlap shown, implying no direct relationship or intersection in this representation. (This diagram is generally interpreted as the two sets having no common elements if they are unrelated, or it could be showing two distinct properties without indicating their combined set.) * **Diagram ②:** Consists of two separate, non-overlapping circles. * Left circle label: "甲企业机器人" (Robots from Company A) * Right circle label: "非人形外观" (Non-humanoid appearance) * Relationship: Indicates that robots from Company A are a separate category from non-humanoid appearances, with no overlap shown. * **Diagram ③:** Consists of two concentric circles, where one smaller circle is completely contained within a larger circle. * Inner circle label: "甲企业机器人" (Robots from Company A) * Outer circle label: "双足奔跑" (Bipedal running) * Relationship: The inner circle "甲企业机器人" is entirely contained within the outer circle "双足奔跑", indicating that all robots from Company A are capable of bipedal running. * **Diagram ④:** Consists of two concentric circles, where one smaller circle is completely contained within a larger circle. * Inner circle label: "轮式结构" (Wheeled structure) * Outer circle label: "非甲企业机器人" (Non-Company A robots) * Relationship: The inner circle "轮式结构" is entirely contained within the outer circle "非甲企业机器人", indicating that all robots with wheeled structures are non-Company A robots. This implies that Company A does not produce any wheeled robots. **Options:** A. ①③ B. ①④ C. ②③ D. ②④