What achievement was most important for ancient egyptians and why

The most important to us would probably be the obelisks.

Explanation:

They help us understand the daily life of the ancient Egyptians. Obelisks are monuments that Pharaohs made for themselves so that after they died, then they would be remembered.

If this is the assignment I am thinking of in World History, then I think D would be what I would choose, since they used hieroglyphs writing to communicate with one another and to help spread stories and cultures, as well as laws throughout Egypt lands. I hope this helped out :D

i cannot see any of the options