生成这道题目的解析视频---**Question Stem:** （2025广东省广州市海珠区月考）铁艺花窗是园林设计中常见的装饰元素. 如图是一个花窗造型示意图, 由六条等弧连接而成, 六条弧所对应的弦构成一个正六边形, 中心为点O, 弧AB所在的圆的圆心C恰好是△ABO的内心. 若AB = 2√3, 则花窗的周长 (图中实线部分的长度) 为 ( ) **Options:** A. 16/3 π B. 8/3 π C. 16π D. 8π **Chart/Diagram Description:** * **Type:** Geometric figure. * **Main Elements:** * The figure depicts a six-petal shape formed by six identical solid arcs connected end-to-end. * Inside this shape, there is a regular hexagon outlined by dashed line segments connecting the endpoints of the arcs (e.g., segment AB). * The center of the hexagon is labeled as point O. * Two vertices of the hexagon on one of the arcs are labeled A and B. The arc connecting A and B is part of the outer boundary (solid line). * Point C is located inside the triangle formed by O, A, and B (triangle ABO). Dashed line segments connect O to A, O to B, O to C, C to A, and C to B. * The outer boundary consists of six solid curved arcs. * The inner lines are dashed straight segments forming a hexagon O-A-B-... and triangles OAB, OAC, OCB. * **Labels:** O, A, B, C. * **Relative Position:** O is the center of the figure and the inner hexagon. A and B are adjacent vertices of the hexagon and endpoints of one of the solid arcs. C is located within triangle ABO.