how does the pharse ,the relationship deteroirated and whitin a few years the children of the people who ate together at the frist thankgiving were killing each other

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; during stalin"s rule, many mothers told their children that he was the greatest thing to ever happen to russia;