As nation-states began to arise in europe, who became the most powerful individuals?
a. nobles
b. knights
c. priests
d. kings

Kings

Explanation:

The medieval political order disintegrated in the 15th and 16th centuries as the power of the monarch grew and allowed for the idea of absolute sovereignty. The only notable exception was England, where the tradition of medieval parliamentarism was particularly strong.These nation states were led by a ruler, who had supreme authority. There authority was sometimes even higher than the authority of the Pope.

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

i believe the answer would be 1.