I am pretty confident that the answer is D) mouthpieces for breathing. This is the only way they can stay underwater for long periods of time. If they came up every 10 seconds for breath, they would waste a lot of time.
I hope I helped you!
My best guess would be the first answer
Private child care is C.
Stay at home parent is A
Family member is B
Day care is D
Nicotine. Lol that’s the only one I know sorry
