单选题 · 选择一个答案
At an intersection controlled by traffic lights, which statement about starting a right turn is correct?
在交通信号灯控制的路口，以下关于开始右转的说法，哪项正确？
A green right arrow permits a safe right turn. Circular green without a red or yellow right arrow requires giving way to opposing straight-ahead or left-turning traffic and crossing pedestrians.
右转绿箭头亮起时，可在安全的情况下右转。普通绿灯亮起且没有红色或黄色右转箭头时，须让对向直行、左转车辆及正在穿越的行人后，才可安全右转。
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A red right arrow prohibits the turn even beside circular green. Circular red without a green right arrow does not permit starting a right turn just because the road is empty.
红色右转箭头要求右转车辆停车，即使普通绿灯亮起也一样。红色圆灯亮起而没有允许右转的绿色箭头时，不能仅因道路空旷或已经停车观察就开始右转。