Why did the power of the emperors weaken during the a. d. 800s?

a. many emperors were very old.
b. buddhist monks were very powerful.
c. the population was declining.
d. many emperors were children.

Many emperors were children weaken the power of the emperors during the A.D. 800s

Explanation:

During the A.D. 800s, the emperor’s power abated. After a time of powerful emperors, several weak emperors occurred to the throne. Many of these emperors were still only children, and court administrators known as regents had to administer for them. A regent is a personality who rules for an emperor who is too childlike or too sick to rule. When the emperors grew up, however, the regents declined to give up their power.  

Most regents came from a group called the Fujiwara. Under the Fujiwara, Japan’s emperors were acknowledged, but they no extended had real power. Rather of the ruling, these emperors spent time studying Buddhism or writing poetry in their palace at Heian.

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.