Asbesto, hpv, chemicals found in tobacco smoke, and exposure to radioactivity and uv radiation are cause of
a. heart disease
b. cancer
c. diabetes
d. heart attack

answer; i do believe that the correct answer is ( portal of exit in the chain of transmission); good luck

out of the choices i'd say d the ability to set goals, mainly because to desire to continue you need motivation but it isn't motivation in that part, but setting goals means you have an endgame and you want to reach it which sums up motivation.

the answer should be c