Final answer:
Jared is addicted to heroin, a highly addictive opioid drug that can be snorted, smoked, or injected.
Step-by-step explanation:
The drug that Jared is addicted to is heroin. Heroin is a highly addictive opioid drug that can be snorted, smoked, or injected. When injected, it produces intense feelings of euphoria and pleasure. Heroin users often inject the drug directly into their veins, which can result in track marks and an increased risk for contracting diseases like tuberculosis and HIV.