You MUST stop when signalled to do so by which THREE of these?
A bus driver
بس ڈرائیور
A red traffic light
سرخ ٹریفک لائٹ
A school crossing patrol
اسکول کراسنگ پیٹرول
A pedestrian
پیدل چلنے والے
A police officer
پولیس آفیسر