The answer is "D. They transported goods across desert regions."
The western allies lost the cezchoslovakia from witch the Greman armies couldn't be out flanked
It would be an "effective secondary source document" that best describes a chart developed 20 years after a historical event, since the information as had time to "settle"--although of course this doesn't automatically mean that the chart is "effective". hope this helps :)
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<span>The basic functions of the United States governmentare listed in the Constitution. They are: 'To form a more perfect Union'; 'To establish Justice'; 'To insure domestic Tranquility'; 'To provide for the common defense'; 'To promote the general Welfare'; and 'To secure the Blessings of Liberty.' I hope that this helps you out, have a wonderful day!!!</span>