What were two advantages of having a strong king for nations of the late middle ages? a. it promoted trade and prosperity. b. it established friendly relations with other states. c. it led to successful war campaigns. d. it kept the unhappy lower class from revolting. e. it secured an advantageous royal marriage.

A.It promoted trade and prosperity.

B.It established friendly relations with other states.

Explanation:

These were two advantages of having a strong king that were important for the people of the late Middle Ages. A strong king was able to promote trade and prosperity, as this king was more likely to be interested in discovering other regions and learning about them. Another important advantage was the fact that this allowed nations to establish friendly relations with other states, as the king was more likely to be respected.