The correct answers are a. learning and the arts flourished, supported by the thriving gupta economy and c. gupta artisans produced goods sold locally and as far away as the middle east and southeast asia
These are evidence that explain their prosperity.
Probably command, as they all produce and export important goods.
The religious upheavals consequences of the sixteenth and seventeenth centuries had very big impact on the people's live in Europe. Numerous conflicts emerged between the Catholics and Protestants, and that resulted in persecution, forced migration, lot of death. The Catholic Church was losing its power in multiple countries, and the Protestants were gaining more power, becoming dominant in those same countries. The tensions in Europe because of the religion led to migration of religious groups to the New World. The reason for migration toward the New World was that the church didn't really had any significant power there, and also there was plenty of space for creating communities, thus leave in peace and without fear.
Answer: It stopped the expansion of Islam into Europe.
In 732 CE, Charles Martel and his troops defeated the Muslims in France in the Battle of Tours. His victory prevented the Muslims to further expand into Europe.