How will a vehicle driver act when a bus carrying children stops in order to pick up or drop off the children?

1. AHe will honk for a prolonged time and overtake as in a normal overtaking.
2. BHe will always stop behind the bus, until the bus continues on its way.
3. CHe will slow down, to the point of being able to stop, and pass slowly by the bus.
4. DHe will overtake the bus as usual, according to all the customary stages of overtaking.

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