<span>developing their human resources.</span>
The troops tried to send supplies but there was a blockade and they were not able to deliver them.
hope it helped <span />
It's A) the US must be a leader in innovation in order to help steer its course.
Answer,
Economic stability
Explanation
Economic stability refers to abscence of excessive flactuationsin the macroeconomy.
planting of crops led to food security without food human life cannot be sustained hence other products cannot be produced.surplus production of crpos led to development of civilization which led to a stable economy because farmers could earn income from their products A stable economy later leads to political stabilty .