The answer would be "D. TRACHEA". It is because the first part of the pharynx which is the nasopharynx transports air from the nose down to your throat and eventually to the lungs where gas exchange between carbon dioxide and oxygen occurs.
As people age, they won’t be able to or have to do much work. Since they have the option to stop working, many of them take the option. As less people work, the more national needs decrease. This isn’t related, but don’t click on the link. It’s most likely dangerous.
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A. Genetic Screen = Breast Cancer
B. X-ray = Lung Cancer
C. Blood Glucose = Diabetes
Hope this helps! (Don't forget Brainliest!)
