Which of the following risk factors has the most immediate impact on a persons health

a) eating too much junk food
b) not excersing for 30 minutes a day
c) not wearing a seatbelt while driving
d) smoking cigaretts

i wanna say its (c) but im not too for

I would say C) as well. A), B), and D) all have long-term impact on a person's life, but not wearing a seatbelt while driving has the most detrimental, immediate impact on one's life because it is completely unsafe, and one wrong move could impact their life immediately. I hope that helps! :)