Physical Patterns of Heroin Use Are Based on Many Distinct

Physical patterns of heroin use are based on many distinct cultural practices. Those physical patterns of use:

A) Are inscribed upon the body in a pattern of scars, infections, and postures.
B) Are a result of racial differences, such as the black gene for resilient veins.
C) Are usually interpreted as inherent rather than cultural distinctions.
D) Show more variation within a group than between groups.