When developing criteria for police recruitment and selection, it is important to understand that effective policing appears to depend heavily on

is there a answer choice?

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; adjusting and adapting to a culture other than one's own;