No sorry, I've never read the book
I will encourage my friends and my family to check and update their emergency contact information by giving them the reason why they should do so. I will tell them that it is very important to have the emergency contacts that are accessible and reachable<span>. In case of emergencies, it is very vital that someone can help them right away.</span>
It wouldn't matter really, but A is good. If you don't have a dictionary at hand, then do your best to pronounce it.
I would have used C because u always have to start with the title and then the author and then the date