Asign in front of a store says "no smoking.” what kind of factor is this sign? external pressure internal pressure media influence peer pressure

Internal pressure is my hypothesis

I would say a health protective factor or an external pressure. It mainly aims at preventing possible diseases that can occur to those who are smoking as well as those who are inhaling the gases produced in the air from the cigarettes. The sign should encourage active smokers to put off their cigarettes and throw them away. This protects the non smokers from being subjected to the smoke. By doing this, it reduces the risk of cancer.