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.
Initially, I was going to say exhaustion, however with further research, I found that the first stage would be alarm. So your answer is:
<span>The first stage of the body‘s reaction to stress is known as the alarm stage
A. alarm
I hope this helped you, have a nice day
~ Karma
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