Acommmand economy tends to exist under a

A commmand economy tends to exist under a socialist government that provides a lot of regulation.

Explanation:

A command economy is an economy where all economic decision making are been taking by the government. The government controls all the means of production that is what to produce, how to produce and so on in a command economy. All resources are been allocated by the government according to the central plan.

its kind of blury sorry

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.