If you don't know how that kind of thing works, you are likely to make mistakes regarding it. If you know how it works, you can prevent yourself from making mistakes that could endanger yourself and/or others.
Depend in what u get, get a good deal or make sure everything fits correct
This question does not make sense. If you are positive then you legally have to clarify that you are HIV positive. Please ask questions that are clear and concise. If it is a riddle then please do not put the question into the health category. Thanks.
C is the correct answer and your welcome