that secrete their products, hormones, directly into the blood rather than through a duct.
The first stage (dialation)
Being a living example of a tobacco-free lifestyle can: all of the above.
All of the listed options is an example of a tobacco-free lifestyle. It could certainly prevent others from trying to smoke, convince others to stop smoking, and make others around you more healthy.
B. Protective Factors
I would say that the answer is B because when your life is in risk, you need someone with you to stay and make sure everything is okay.