Answer:
C. Listen to criticism from others.
Step-by-step explanation:
The given sentence is a famous Iroquois saying from "The Iroquois Constitution." This saying firmly depicts the wisdom of the framers of the Constitution and their 'democratic' approach.
In the saying, the leaders of the people must be open to any form of criticism that may come from any side, including the younger generations. The phrase "cast not over your shoulder behind you the warnings of the nephews and nieces" refers to the younger generation's criticisms and how they should not be ignored. This shows how a good leader is approachable and open to any 'corrections' even from those younger than him.
Thus, the correct answer is option C.