Answer:
D. Sharing needles
Explanation:
Sharing a needle or syringe to inject any substance (including steroids, hormones or silicone) puts you at risk of HIV and other infections found in the blood, like hepatitis C. You’re at risk whether you’re injecting under the skin only or directly into your bloodstream.
Answer:
true,false,false,true,false
The answer is A.
The group thed that received placebo was called the control group
In treatment, a control group is designed to assess treatment effect. So the researchers could see whether the actual treatment is giving an effect or not. It operate like some sort of benchmark
