What was the "invisible hand theory" proposed by afam smith a. the power to govern should be given to the ruler by the .the gonvermment should be given absolute power in return for the . the govermment should control all business and .the economy will automatically adjust to the needs of buyers and sellers

D - The economy will automatically adjust to the needs of buyers and sellers

Adam Smith believed in a free market economy, thus making C incorrect. On top of that, the Invisible Hand Theory focused on the market rather than authority, thus making A and B incorrect.

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the correct answer is:   "   3.6 % " .

          →   the unemployment rate is:   " 3.6 % " .

explanation:

to calculate the "unemployment rate" :

the "unemployment rate"   =

  [# of people unemployed] /   [working age population]   * 100 %   ;

                =   [9 million] / [250 million]     *   100 % ;

    →     note:   the units of "million" cancel out;

                    since:   " {million} / {million} = 1 " ;

                =   (9 / 250)   * 100 %   ;

                = 0.036 * 100 % ;

                =   3.6 %

answer:   the unemployment rate is:   " 3.6 % " .