Reusing or sharing needles, really anything that can be spread through blood and drugs.. i hope this helps and sorry its so brief.
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I answered C and it was marked wrong
Can not let anyone do anything. Because he/she is scared that they will get hurt... or they could hurt some one if they hurt his/her friend.
Here are some reason to prepare yourself for an SAT. Firstly, start early. We know that ideally you’ll like all the time in the world to prepare for a test. Secondly, set a goal. Have everything planned out so your organized. Thirdly, get a good night sleep. Getting the right amount of sleep will help you think and keep you energized for when you need to take the test. Some other reasons that involve this question are shoring up your weaknesses. If you already have strengths such as the written portion then it might make sense to to put your energy into a weakness. Eat well and prioritize. Therefore, being prepared for a test like this in advance will help you in many ways.