Which of the following could be the reason that drivers do not the see the motorcyclist and ended up in a collision?

• They fail to pick the rider out of the traffic scene.
• They fail to judge the speed of the oncoming motorcycle.
• They fail to tailgate the motorcycle close enough.
• Both A & B
  Explanation:

  "The issue of motorists not noticing motorcyclists is twofold: they either fail to distinguish the motorcyclist within the traffic scene or misjudge the speed of an approaching motorcycle."