Adam smith, in his book wealth of nations, contributed to the development of capitalism by

promoting the benefits of communism
suggesting that the government limit competition
defending the idea of free markets
supporting the theories of socialism

Good choice: Defending the idea of free markets.

Explanation:

Adam Smith (1723-1790) is a Scottish social philosopher and political economist. He exposed his ideas on economy in his famous work  An Inquiry into the Nature and Causes of the Wealth of Nations. He advocated free enterprise over government-controlled economic activities.  He is seen as a father of laissez-faire capitalism.

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.