When entering a roundabout, what should a bus driver plan first?

1. Choose the correct lane early, give way as required, signal and allow for the bus's swept path
2. Use parts of two marked approach lanes when the bus needs turning room, without changing the plan
3. Use the left lane for an exit beyond 12 o'clock when that position reduces nearside off-tracking
4. Select the lane at the give-way line so traffic has the clearest notice of the intended exit