Answer: As a result an informal norm has become a law.
Even before states had started making it illegal for people to drive while using cell phones, grouping of individuals had already stood against this practice. Thus, we can say that the social movement started at the beginning of the 21st century was what actually made this law come true.
A nations wealth is made up of all tangible iteams. Hope this helps!
your answer is gonna be a. (: