Final answer:
Firearms technology led to the obsolescence of aristocratic mounted warriors in European social structures, shifting military power to infantry forces including commoners.
Step-by-step explanation:
The introduction of firearms technology had significant impacts on the social structure of western European societies. One of the key changes was c. It eventually made aristocratic mounted warriors obsolete. As firearms became more prevalent and effective, the traditional military dominance of knights and feudal armies, who fought on horseback with melee weapons, diminished. The firepower offered by muskets and cannons made heavily armored cavalry less effective and shifted the military balance towards infantry forces, which could include commoners armed with guns.