Answer:
4) No control group was used.
Explanation:
In order to check the side effects of this multivitamin tablet. It is first important to establish a control group. If the control group does not have the side effects which the treatment group of individuals (those who have taken the multivitamin tablet) have, it shows that the side effect is purely because of the tablet.
the way you feel and what u think about yourself
Explanation:
i think everyone has personal bias
You need to eat healthy, exercise daily, take brisk walks and do the daily chores of habitual.
