What physical feature best supported the development of early societies?

While lakes and ponds may sound like the perfect water source, they could quickly become polluted, as water sources often doubled as toilets. As such, some form of water that moved was preferable. For this reason, many of the greatest early civilizations, such as the Egyptians and the Sumerians, developed near rivers.

Explanation:

ur mom

explanation:

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )