Why did Genghis Khan divide the rule of his empire among four sons? He did not trust any of his sons to rule the entire empire.
He feared the clans would choose someone other than his sons to rule.
He wanted to make daily governing easier and let his sons share power.
He planned to see which son would be the strongest, most capable ruler.

C, he wanted to make daily governing easier and let his sons share power.

Explanation:

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.