Which of the following is an example of the formal amendment process? Select the best answer to the question.
A
The gradual expansion of the President's war-making power as commander-in-chief
B. The 1920 change to the Constitution that gave women the right to vote
C.
The 1954 Supreme Court decision Brown vs. Board of Education, which outlawed segregation
D. The custom and tradition that fill in the details left vague in the Constitution