You may find the answer is
D) Fetal exposure to alcohol is the cause of many mental abnormalities, such as a smaller cerebrum.
A, while is good isn't as specific and uses basic language.
B is better but doesn't use examples as well as D.
C uses language that could be found offensive, therefore probably not the best for explaining this subject.
The consequences of your decisions can affect your emotional and self esteem health.
I think you should have a few more transitions in their but otherwise, I think you did great.
The answer would be D. If treated right away the virus can be prevented from advancing into AIDS.