A stopped transit bus ahead is signalling to re-enter traffic on a road where the posted limit is 60 km/h or less. What should a driver approaching from the rear do if it is safe?

1. Yield the right of way so the transit bus can move back into traffic
2. Pass before the bus can enter the lane
3. Treat it the same as a stopped school bus with red lights
4. Yield only if the bus driver waves by hand