Economic sanctions are mainly used to
A. punish nations for disobeying international law
B. help domestic industries gain more business
C. protect domestic from international competitors
D. encourage nations to give up their nuclear weapons

In a study, people were asked to imagine simple occasions that made them happy and to remember events that made them feel proud about themselves. it was observed that the subjects developed an increasingly positive attitude. these changes are known to be healthy, leading to greater physical activity and reducing unhealthy habits. based on this excerpt, we can conclude that a positive attitude .