Which of the following is a common paraphernalia associated with heroin use?

The presence of burnt spoons and needles is commonly associated with heroin use due to the methods of consumption that users typically employ. When individuals prepare heroin for injection, they often dissolve it in water, which is typically done using a spoon that is heated until the mixture becomes liquid. The spoon often shows signs of burning due to this heating process. Needles are also essential paraphernalia, as they are used for injecting the drug directly into the bloodstream, which is a common method of use for heroin.

Burnt spoons and needles reflect the specific practices surrounding heroin administration, where the physical preparation of the drug and the method of intake are distinct. This set of paraphernalia effectively indicates a user's preferred way of consuming heroin and is very recognizable in discussions around substance use, particularly with opioids.

Other options may represent various forms of drug paraphernalia but do not specifically signify heroin use as clearly as burnt spoons and needles do. For instance, balloon packs, glass tubes with wool, and plastic bags might be used for different substances or methods, thus rendering them less definitive as indicators of heroin use compared to the spoon and needle association.