The Silk Road was specifically developed to a.
allow for easier trade with Europe
c.
provide access to the Great Wall
b.
exchange ideas within the Chinese Empire
d.
allow for easy travel within China.

THE ANSWER IS D CAPS IS STUCK SORRY

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 % " .

the graph is a circle graph because it demonstrates different components of the graph in the form of a circle . pls mark brainliest!