B: Pull alongside the moped and stay level until just before the junction
C: Sound your horn as a warning and pull in front of the moped
D: Stay behind until the moped has passed the junction
View hint
Passing the moped and turning into the junction could mean that you cut across the front of the rider. This might force them to slow down, stop or even lose control. Stay behind the moped until it has passed the junction and then you can turn without affecting the rider.