Which of the following are types of side airbags that protect the head?

Answer: B — Tubular and inflatable curtains

Inflatable curtains are a type of side airbag designed to provide protection for a vehicle occupant's head in the event of a side-impact collision. They deploy from the roofline and cover the side windows, creating a barrier that helps prevent the occupant's head from striking the vehicle's interior or from being penetrated by external objects. Tubular airbags, although less common, are designed to conform to the vehicle's shape and can also provide head protection by creating a cushioning effect during an impact. In this context, inflatable curtains specifically designed to defend against head injuries during side impacts align closely with the desired features of head protection airbags. Therefore, this option accurately represents types of side airbags that are effectively used to safeguard passengers' heads during collisions, distinguishing it from other choices that may reference airbags not aligned with this specific purpose.