I think the answer would be reassure white american settlers that the frontier was safe and peaceful.
Hope this helps
"<span>Social stratification developed based on newly specialized jobs" is the best option from the list, since this was due to the recent ability to domesticate plants and animals.</span>
...described as people who are...coming in?
This country was Poland and the decision was done in the Ribbentrop-Molotov Pact, which was oficially a pact of non-agression between the two powers but in fact divided Europe into two spheres of influence, one for each country, and Poland was divided.
