How would conflict theorists explain differences in sentencing between crack and cocaine possession? ...

How would conflict theorists explain differences in sentencing between crack and cocaine possession?
 
  a. People of the upper classes are more likely to use cocaine and have access to lawmaking power.
 b. Crack is more dangerous than cocaine.
 c. More people use crack than cocaine.
 d. Cocaine is a part of our culture.

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Individuals who are poor and minorities may abuse drugs as a result of alienation from society due to unpleasant and low-paying jobs. This illustrates which of the following types of sociological explanations?
 
  a. Structural-functionalist
 b. Conflict theory
 c. Symbolic interactionist
 d. Biological