Concept:The key idea is that to "bury the hatchet" is to put an end to a quarrel and become friendly again.
Explanation:When two people "bury the hatchet," they stop fighting and settle their differences.
The phrase does not suggest taking a life-changing step or going backwards.
It also does not mean adopting a serious attitude.
Instead, it points to reconciliation and restoring harmony with others.
Therefore, the most appropriate interpretation is to make peace.
Answer:C. make peace with everyone