Aresearcher measures brain activity in younger and older children to find out if one group demonstrates a more efficient executive function. what should the researcher observe if the executive functioning skills of the older children are more advanced that that of the younger group?

it would be d). more resources must be obtained to attain that combination of goods and services

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; nearly half;