It is a compound noun. Why? Because 'Back''Pack' is one word, but if you see how i structured it, it can be two. Back, as in your body part, and Pack as in a bag or container, you name it. And just a tip, compound means two words squished into one, ex. CupCake, FireWorks, BaseBall, BasketBall. But when you are typing it, of course, you wouldn't capitalize the first letter of the two words :)
Post a picture so I can help you !
Looks really good but change the us to either the United States or the U.S.
Because maybe she feels safe and when you feel safe you call that place your sanctuary or another definition of sanctuary is a place where you spend most or a lot of your time<span />
Answer:
C makes the most sense out of all these.