Answer: Double blind clinical trial
Explanation:
The situation that is seen here is double blind clinical trail in which neither the participant nor the practitioner knows who is receiving the treatment.
This is used to prevent biasing in the experiment which is caused due to demand characteristics or placebo effect.
Here, in this situation the dog handlers and the experimental observer both were blinded to identify the breath sample.
I believe all of the above is correct.
Answer: Never sank if you want to lose weight is false
Explanation: Well, snaking it has a god side and a bad side. You can do it but you take little portions. Not a hole bag of chips. A serving of a bag of chips. Lesson is you want to do it in moderation . Not to big not to small.
