The best answer here would be A. Make meetings with a support group a priority, and meet new people with shared interests.
She will need all the support she can get to stop her habit and stay off the drugs. She is under the care of her doctor so a support group with other people who are experiencing the same will help. Also meeting new people with shared interests will help her to know she isn't alone.
Answer:
b. ex post facto or quasi-experimental.
Explanation:
An ex post facto search is done when a researcher cannot manipulate one of the variables such as sexual behavior or smoking (as described in the question), ie this type of research is done when it is not possible to manipulate the independent variables as they already arrive ready for research. Ex-post fact research deals with variables that are unmanipulated in nature. Quasi-experimental research can also be done for this same situation.