Answer: B. Vice president
Explanation: John Adams was the second President of the United States, after George Washington to which he was Vice President. One of the founders of the US, a great patriot and an uncompromising fighter for independence from Britain in political and every other sense. He participated in all the major events that preceded the Revolution as well as in the Revolution itself.
The aforementioned sentence was found in a letter sent by John Adams to Abigail Adams his wife and reportedly his key adviser, in which he literally said of the Vice-Presidential post, as quoted here. Historical sources claim that John Adams was pleased with the post and loved being the first under the President himself while serving as the first Vice President. John Adams himself saw the position as a chance to become president after Washington and as he was.