I believe the correct answer would be C. A presidential appointment is confirmed by the Senate. This can be seen under the Appointments Clause of the United States Constitution where it says the certain federal positions that are appointed by the president of the US should be confirmed by the US Senate.
The United States gained it’s independence by The American Revolution, which would be 4.
Answer: fencing
Explanation: The odd one out
The shape would be a trapezoid, because trapezoids always have two sets of equivalent angles, while others don't. Like squares and rectangles have all 90 degree angles.