<span>C. Understanding someone else's experiences and feeling his or her emotions</span>
Answer:
Cardiopulmonary resuscitation
Explanation:
True, sleep problems indeed are a quite often occurence among children as well as adults - they do occur quite often but don't necessarily occur all the time for people to whom it does happen. At the same time, when someone suffers from sleep problems, this doesn't necessarily mean that he cannot sleep at all.