the answer is b. 15 minutes
you should at least read for half of 30 minutes which is half an hour
hope I helped
:D
D right?m i think it is d because it makes sense
Answer:
i think this should be a personal experience how can we right about ur experience
Explanation:
No, it does not according to the study. the study states it is just a placebo effect (it works because you expect it to.)