Answer: B. Household cleaning products
Explanation: The heating pad and lawn mower can be dangerous, but not as often as the case with household cleaning products which are used on a daily basis. These include air fresheners, fabric softeners, cleaning products with artificial fragrances, corrosive drain cleaners, oven cleaners, toilet bowl cleaners, bleach and ammonia. Also products that create suds like shampoo, liquid soap, bubble bath, laundry detergent etc. The problem with this cleansing agent is that there is an opinion that they are safe, and many of them contain very harmful and toxic substances and gases.
