Final answer:
Marijuana is the second most commonly found drug in drivers involved in crashes, following the patterns of increased prevalence due to its legalization and decriminalization.
Step-by-step explanation:
The second drug most often found in drivers involved in crashes is marijuana (C). While heroin and opioid painkillers contribute significantly to overdose deaths, marijuana is still more prevalent when it comes to driving under the influence. The prevalence of marijuana has increased with its legalization and decriminalization, although it has historically been linked to a high number of arrests for drug-related offenses. Furthermore, the opioid crisis has highlighted the rise of heroin abuse, which has evolved from the legal distribution of opioid pain medications. Despite the increase in the potency of drugs like heroin, it is important to note that marijuana is more often found in drivers involved in crashes.