It is a good idea because it helps to detect if there is too much carbon monoxide in the house. If there is too much, it can be poisonous and the detector will let you know. this answer would be TO AVOID POISONING BY A BUILDUP OF CO GAS. btw, is this platoweb? just curious.
D because many people don't see the depression and anxiety that comes with worrying about money as important as drug addiction or feelings of inadequacy