Which is an example of diplomacy

When you negotiate or broker a deal between two parties who are angry, this is an example of a time where you have shown diplomacy. When a president sits down to talk to the president of another foreign country in order to try to resolve a tense situation, this is an example of a time when diplomacy is necessary.

Explanation:

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the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.

people had jobs and began to work. that’s why the commercial revolution was great.