The correct answer is C. These amendments are legal according to the fifth article of the Constitution
Step-by-step explanation:
The meaning of the word "pursuant" is "in conformity with". This means in the case of "pursuant to the fifth Article of the original Constitution" this means in conformity to the fifth article in the constitution it is possible to ratify and add new articles and amendments. This is accurate because the fifth article establishes the Constitution is not exclusively limited to the articles of the original constitution but through the amendment mechanism, it is possible to change previous articles or add new ones. Thus, the phrase means "These amendments are legal according to the fifth article of the Constitution".