At the beginning of the twenty-first century, some people placed signs with crudely painted skeletons holding cell phones near roadways, usually facing freeway ramps. These signs indicated disapproval of using cell phones while driving, a practice some states have now made illegal. As a result of this social movement : Group of answer choices : A) There are no formal sanctions that can be used to enforce the norm of not talking on a cell phone while driving. B) An informal norm has become a law. C) Talking on a cell phone while driving is taboo. D) Almost no one violates the norm of not talking on a cell phone while driving.
