I believe the answer is :Random sampling
Random sampling refers to select a group of subjects that could be used as sample for a research from a large population. The selection is beind done without any criteria in hope that the sample at least represent the general composition of the population.
A.) because they became greedy and petty and “morally bankrupt”, and the “ gods” became angry because the people had lost their way and turned to immoral pursuits. Order says. As punishment, he says, the gods sent “ one terrible night of fire and earthquakes” that caused Atlantis to sink into the sea.
The first cities developed
in the region known as Mesopotamia
between 4500 and 3100 BCE. The city of Uruk, today considered the
oldest in the world, was first settled in c. 4500 BCE and walled cities
Answer: B hope it helps !