What percentage of adult deaths is attributed in part to smoking? a. 10% b. 20% c. 30% d. 40% select the best answer from the choices provided. a b c d

B

Explanation:

Smoking is a leading cause of lung diseases which is caused by nicotine and other chemicals that a smoker intake. Some adults commonly smoke when they are still teens and their nicotine level in their lungs will increase as the years passed by which accumulates to lung problems.

Ithink that c would make the most amount of sense.