The city of became a leading center for muslim scholarship and trade.
a. cairo b. timbuktu c. morocco d. mali.

The Timbuktu became a leading center for Muslim scholarship and trade

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Option B.

Explanation:

Timbuktu, is the right answer.

Timbuktu, a city in the Mali country has great significance as a trading station on the trans-Saharan expedition course and as a hub of Islamic culture. Throughout the 14th century, this city developed as a center for the trans-Saharan salt and gold trade and as a center of  Islamic culture. Following its capture by Morocco, the city began to decline by the year 1591.

the event is known to be the soviet union.

the process is called revolution because it was a process of great economic-social transformations that began in england in the xviii century.

the industrial mode of production spread throughout much of the northern hemisphere throughout the xix and early xx centuries.

the effect of this revolution was the distance between the countries, with respect to economic and political power.   after all, not all industrialized at the same time, remaining in the condition of suppliers of raw materials and agricultural products to the industrialized countries.

these differences mark to this day the nations of the world that are divided between developed and developing countries. one way to measure whether a country is advanced is to assess how industrialized it is.