Final answer:
If a pocket mask or BVM is not available, you should provide mouth-to-mouth ventilations directly.
Step-by-step explanation:
If a pocket mask or BVM is not available, the correct response is to provide mouth-to-mouth ventilations directly. This involves placing your mouth over the person's mouth and nose and delivering breaths to help with their breathing. It is important to maintain a secure seal and blow into their mouth forcefully enough to make their chest rise. This method can help provide oxygen until professional medical assistance arrives.