Answer:
Obey traffic signals at intersections
Step-by-step explanation:
Always walk on the left side of the street (people are allowed to walk on the other side) so this is wrong
Yield to vehicles when not using a crosswalk. (Vehicles have to stop when people are crossing) so this is wrong
Obey traffic signals at intersections (everyone must follow these rules)
This one is right
All above (since some above are incorrect this one will be cancelled out)
Only right answer is (Obey Tracffic signals at interections)