The answer is b. His work became the basis for algebra.
A. The 1848 discovery of gold in California
B is not an example of economic freedom because wages and prices are being controlled by the gov. controlling money is not freedom economically because the individuals are not controlling it themselves (which would be freedom) . The rest of the options are examples of economic freedom.
Answer:
a period of relative stability in Eurasia under the Mongol Empire during the 13th and 14th centuries.
Explanation:
