Smoking have contributed to the patient's hypertension by constricting the blood vessels. Correct answer: A The chemical in the cigarettes -nicotine causes the blood vessels to constrict or narrow and this limits the amount of blood that flows to your organs, condition known as hypertension.
Cyan that sounds right to me.
Carbon monoxide is found in vehicle exhaust
So they can be more comfortable and confident in their disability and might be able to overcome it