How should bicyclists transport a child under age four or who weighs 40 pounds or less?

• Bicyclists are not allowed to transport children under the age of four.
• Bicyclists can transport children in any manner they prefer.
• Children are not allowed on bicycles.
• Bicyclists must use a backpack/sling, child seat, or trailer designed to carry children.
  Explanation:

  "If a bicyclist is transporting a child under age four or who weighs 40 pounds or less, they must use a backpack/sling, child seat, or trailer designed to carry children."