Among the most numerous and impressive landmarks of the carolingian renaissance were
a) improvements on roman engineering.
b) enduring political systems.
c) illuminated manuscripts in more legible script.
d) stone sculptures.

What was the Scientific Revolution? It challenged Ptolemy's and the Churches' beliefs about the Earth being the center of the universe., It was when scientists, during the Renaissance started to find truth thought direct observations rather than only listening to the church.

Explanation:

The scientific revolution laid the foundations for the Age of Enlightenment, which centered on reason as the primary source of authority and legitimacy, and emphasized the importance of the scientific method