The best example of a sanction from the list B) Country A enacts trade restrictions against country B. Its important to remember that a sanction can be defined as either a threatened penalty for disobeying a law or official approval/permission. In this case enacting trade restrictions would be considered the first definition, <em>a penalty</em>.
Because all the wealthy american have the choice to help the poor but they choose not to because they feel that they are of a higher standard than them. This shows that they do not value equality, they do not give to those in need.