You have to tell the adult as soon as possible. Don't let anyone experiment on something without adult's supervision.
The answer is A
Hope I helped
D. seems the best to me so hope it helps
<span>Anaerobic is the kind of</span> exercise that does not require the use of oxygen to metabolize energy. Anaerobic focuses more on muscle strength exercises such as lifting. Though it requires energy still it can be performed with less air.
