Danger: A) signifies that the hazards can cause serious injury B) signifies that the hazards can cause less than serious injuries C) warns users to be careful when using, handling or storing the chemical D) all of the above? 1) signifies that the hazards can cause serious injury 2) signifies that the hazards can cause less than serious injuries 3) warns users to be careful when using, handling or storing the chemical 4) all of the above​