Under which offences do you get 4 demerit points?

• Failing to yield the right-of-way to a pedestrian in a crosswalk, following too closely, speeding (exceeding limit by 51km/h).
• Failing to yield the right-of-way to a pedestrian in a crosswalk, following too closely, speeding (exceeding limit by 30 to 50 km/h).
• Failing to yield the right-of-way to a pedestrian in a crosswalk, following too closely, speeding (exceeding limit by 31 to 50 km/h).
  Explanation:

  "4 points: Failing to yield the right-of-way to a pedestrian in a crosswalk, following too closely, speeding (exceeding the limit by 31 to 50 km/h)."
• Failing to yield the right-of-way to a pedestrian in a crosswalk, following too closely, speeding (exceeding limit by 32 to 50 km/h).