It's C. The 25th Amendment (the one that goes over what to do about a vice president if the current vice president becomes president) wasn't ratified until after Kennedy's assassination.
English please . Then I will help u
As the first President of the United States, Goerge Washington was the one responsible for setting the standards for the position. He knew his role was critical, as he has to maintain the balance between having a role sufficiently powerful to manage the affairs of the country effectively but also not make it look as a Monarchy where the power was all centralized.
Due to his particularly special position as the first president, there was no precedent to be used as a model of comparison when criticizing his efforts, therefore this was an advantage as all his actions would use the reference for his successors.
Option B is the right answer that the Navajo sent messages to prove that the code worked.
Navajo code talkers in the 20th century were the people who used the coded language as the method of their communication during wartime. Using their Native language, the Navajo Code Talkers developed a confidential military code which gave assistance to the United States to achieve success in the Pacific during World War II.
Navajo code talkers tested their code by sending messages so as to ensure that the code can be decoded by the receiver or not.