What is the highly addictive substance that occurs naturally in tobacco?

this doesn't seem to be an actual health/school question. yet, im gonna answer it as if it is one. (by the way, im here for you if it isnt).

humans are very odd creatures. yet, this question is very biased against males. all genders do happen to cheat on their wives / husbands. the real question should be why genders cheat on the person they love. some people might make bad choices, or just make a mistake

explanation:

answer: because barriers look like ball

explanation: there round and blue like my ball

your answer will be a. sorry if im wrong: )