The power of state and local governments in the United States to regulate in the interest of the health, safety and welfare of citizens in general is known as:

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;

good question. i'll be looking into that. (this is a joke sir)

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.  

answer; love and belonging needs;