Answer:
B. Nomadic ways of life.
Explanation:
With a food surplus groups of nomads were able to settle in one location instead of moving from location to location following herds of animals or slash-and-burn farming.
John Sutter (born Johann August Suter; February 23, 1803–June 18, 1880) was a Swiss immigrant in California whose sawmill was the launching spot for the California Gold Rush. Sutter was a prosperous pioneer and land baron when one of his sawmill workers found a nugget of gold at the mill, on January 24, 1848.
Following proven health measures is still the best way to keep everyone, including children, safe from The Virus This includes keeping hands clean, practising sneezing and coughing into bent elbows, opening windows, wearing a mask if age-appropriate, and continuing physical distancing.