It's called hypoxemia, it's low levels of oxygen in the blood, to be more specific, it's oxygen loss in your blood from your arteries. It can cause respiratory disorders, and tissue hypoxia, as a result of the blood not providing much oxygen to your body.
I hope I helped :)
Answer:
Explanation:
You got it right! It is in fact A.
Answer:Short
Explanation:Also I feel so bad for you.
you are correct, it would be D. i hope this helps you out!