I need the full question to answer as well as the graph and/or any examples you have.
So you have the right information, because if you use non-credible sources you might learn the wrong information, anyone can edit these non-credible sources <span />
The answer would be B.often times depending on the exercise you would need a spotter
<span>Genetic factors have been found to play in the development of alcoholism, but are less conclusive for other substances.</span>
HIV-Sexual contact
Flu-Direct contact
Malaria-Animal vector