求解这道题目---The extracted content from the image is as follows: **Question Stem:** 9. 已知函数 f(x) = sin(ωx + φ) (ω > 0, |φ| < π) 的部分图象如图所示, 则下列说法中正确的是 **Mathematical Formulas/Equations from Question Stem:** f(x) = sin(ωx + φ) Conditions: ω > 0, |φ| < π **Options:** A. f(x) 的最小正周期为 π B. f(x) 的图象关于 (7π/12, 0) 对称 C. f(x) 在 [-5π/6, -π/2] 上为减函数 D. 把 f(x) 的图象向右平移 5π/12 个单位长度可得一个偶函数的图象 **Chart/Diagram Description:** * **Type:** A graph of a sinusoidal function, resembling a sine wave. * **Coordinate Axes:** A standard Cartesian coordinate system with a horizontal X-axis (labeled 'x') and a vertical Y-axis (labeled 'y'). The origin is labeled 'O' at the intersection of the axes (0,0). * **Key Points and Labels:** * On the X-axis, labeled points are -π/12, 0, and 5π/12. * On the Y-axis, labeled points are 1 and -1. * **Curve Characteristics:** * The curve passes through the point (-π/12, 0). At this point, the function appears to be increasing. * The curve passes through the origin (0,0). At this point, the function appears to be decreasing. * The curve reaches a local minimum value of -1 at x = 5π/12. A dashed horizontal line extends from y = -1 to this minimum point, and a dashed vertical line extends from x = 5π/12 on the X-axis to this minimum point, explicitly marking the point (5π/12, -1). * The curve reaches a local maximum value of 1 at an x-coordinate visually between -π/12 and 0 (not explicitly labeled, but indicated by a dashed horizontal line from y=1 to the peak).