What does cross-addiction and cross dependence mean? a. you can become addicted to drugs in different class even if you never use them. b. you can become addicted to drugs in the same class even if you never use them. c. you become addicted to all types of drugs.

parts of an essay — traditionally, it has been taught that a formal essay consists of three parts: the introductory paragraph or introduction, the body paragraphs, and the concluding paragraph. an essay does not need to be this simple, but it is a good starting point.