Unlike ancient Mesopotamia, ancient Egypt Select one:
a. retained unified through much of its history
b. lacked a coherent writing system
c. did not employ an effective method of irrigation
d. worshipped many gods

Answer is option d

Explanation:

The ancient Egyptians worshipped many gods. ... These gods and goddesses often represented the natural world, for example the sky, earth, wind, or sun. They took the form of animals or combined animal and human forms.

D. worshipped many gods

Explanation:

Unlike Mesopotamia, Egyptian civilization featured very durable and centralized institutions. Mathematical achievements and impressive architectural structures also characterized Egyptian civilization. The world's longest river, which flows northward through East Africa into the Mediterranean Sea.

I don't know if it's correct,

so hope it helps