Which of the following can be inferred about China’s Ming Dynasty tribute system?

It was not successful because countries did not offer tribute to China.
Tributes were something entirely new that had never been used before.
By persuading other countries to pay tribute, China demonstrated that it was a powerful country that others should respect.
China only sought tributes from countries that bordered them

By persuading other countries to pay tribute, China demonstrated that it was a powerful country that others should respect.