D

 A

TL;DR (Background / Big Picture of that article):
The StudyFinds piece is talking about research suggesting that people don’t literally die “just from old age” — instead, even very old people usually die from specific health problems (like heart failure, stroke, organ failure, infections, cancer, etc.) rather than a mysterious “old‑age process” by itself. Aging makes those conditions more likely but isn’t itself the direct cause on a medical certificate. (Facebook)

Key summary points:

• Scientists reviewing lots of autopsy data found that people who die at very old ages still have identifiable disease processes (e.g., heart attacks, organ failure) that are the proximate causes of death — even in healthy‑looking centenarians. Old age itself wasn’t the listed physiological cause of death. (Facebook)

• The idea is that aging increases vulnerability to these fatal conditions, but it’s technically the organ or system failure that ends life. (Facebook)

• So “old age” in everyday speech or on some death certificates is a shorthand for multiple underlying diseases and cumulative declines, not a unique biological cause. (Facebook)

If you want a brief explanation of how medical professionals record causes of death and why “old age” is rarely used on official certificates, I can summarize that too.