Step-by-step explanation:
He might be a 1 year smoker,damaged lungs and throat cancer are both signs of smoking for a very long time, for imparticular, 1 year. Low blood-oxygen is also another sign,because of the smoke.
Answer:
He was probably a heavey smoker. because smoking can cause high blood presure and it also damages your lungs. Plus smoking also can cause throat cancer. So I would go with smoking.
I hope this helps!!!!
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