Correct Answer: make peace

Solution : The correct choice is the fourth option.

The idiom "bury the hatchet" means to make peace or to end a conflict. It implies a resolution of differences or the cessation of hostilities between two parties. The origin of the phrase is often associated with Native American customs, where burying a hatchet symbolises the end of a dispute or the intention to live harmoniously.

Therefore, the correct answer is: make peace.