Answer:
D
Step-by-step explanation:
It doesn't prevent small political groups from blocking changes to the Constitution because the amendment was approved by a higher percentage of states than the House and Senate.
It doesn't make the process of changing the Constitution as easy as possible because it still needs to go through many stages of approval.
It doesn't ensure that state governments submit to federal authority under the Constitution because, again, the state had a higher percentage in vote.
So, D must be the correct answer; with the collective view of the states, house and senate, the amendment can reflect the needs of the time.