请帮我解答这道题---**Textual Information:** * **Question Stem:** (2025·江苏省·期中考试)在汽车中悬线上挂一个小球，当汽车运动时，悬线将与竖直方向成某一固定角度，如图所示，若在汽车地板上还有一个跟其相对静止的物体M，则关于汽车的运动情况和物体M的受力情况正确的是（ ） * **Options:** A. 汽车一定向右做加速运动 B. 汽车一定向左做加速运动 C. M除受到重力、地板的支持力作用外，还一定受到向右的摩擦力作用 D. M除受到重力、地板的支持力作用外，还可能受到向左的摩擦力作用 **Chart/Diagram Description:** * **Type:** Schematic diagram/illustration of a car with internal elements. * **Main Elements:** * **Car:** Represented by a rectangular box with two wheels, resting on a horizontal ground surface (indicated by multiple parallel diagonal lines). * **Hanging Ball (m):** A small black circle labeled 'm' is suspended from the top interior of the car by a dashed line. The line is tilted towards the right. * **Vertical Reference Line:** A dashed vertical line extends downwards from the suspension point of the ball, parallel to the car's side wall. * **Angle (θ):** The angle between the tilted suspension line of the ball 'm' and the vertical reference line is labeled 'θ'. The tilt is to the right relative to the vertical. * **Object M:** A small rectangular block labeled 'M' is placed on the floor inside the car, to the right of the hanging ball. * **Direction Labels:** "左" (Left) is labeled to the left of the car, and "右" (Right) is labeled to the right of the car, indicating the horizontal directions.