The civilizations of the Huang River valley and the Nile River valley were similar as both were ruled by dynasties. Option D is correct.
A dynasty is understood as a sequence of rulers from the same family, usually in the context of a feudal or monarchical system, but sometimes also appearing in elective republics. The longest-surviving dynasty in the world is the Imperial House of Japan, otherwise known as the Yamato dynasty, whose reign is traditionally dated to 660 BC.
C. other planters because there population was big during those time
ANSWER YALL:
ITS D LIKE IN DOG WOOF WOOF
EXPLINATION BOIZ:
The Delian League (or Athenian League) was an alliance of Greek city-states led by Athens and formed in 478 BCE to liberate eastern Greek cities from Persian rule and as a defence to possible revenge attacks from Persia following the Greek victories at Marathon, Salamis, and Plataea in the early 5th century BCE