Why was the peaceful transfer of power between political parties called "the Revolution of 1800"?

A)It was because the British secretly had bribed the Federalists to remain in power

B) It was the first time power changed hands in the US government

C) It was because George Washington was named King and he decided not to take it.

D) It was because the Federalists did not want to hand over power to the Anti- Federalists/Democratic Republicans but the Democratic Republicans took over by threatening force without actually shooting.​