Which characteristics distinguish Schedule II drugs?

Schedule II drugs are indeed characterized as highly addictive and are typically prescribed for severe pain. This classification reflects their elevated potential for abuse, which can lead to severe psychological or physical dependence. The categorization is part of the Controlled Substances Act, where Schedule II substances are recognized for their medicinal benefits while also acknowledging the significant risks associated with misuse.

Option B refers to drugs that have low potential for abuse and are accepted for medical use, which aligns more with Schedule IV or V substances rather than those in Schedule II. Option C pertains to drugs classified as Schedule I, which have no accepted medical use and a high potential for abuse, making it incorrect for Schedule II drugs. Option D describes substances that result in mild dependence, which does not accurately represent the high level of dependence associated with Schedule II drugs.

Thus, the defining characteristics of Schedule II drugs as highly addictive and utilized for managing severe conditions underscore the correct understanding of their classification and regulatory context.