According to the catholic church, what makes an apparition authentic?

A Marian apparition is a reported supernatural appearance by the Blessed Virgin Mary. The figure is often named after the town where it is reported, or on the sobriquet given to Mary on the occasion of the apparition.

Explanation:

The right answer is: A) Oppose European(...)colonize nations. The Monroe doctrine, synthesized in the quote "America for the Americans", was elaborated by John Quincy Adams and attributed to president James Monroe in 1823. It established that any European intervention in America would be seen as an act of aggression that would require intervention of the United States of America.  It was a decisive moment in the foreign policy of the United States representing its opposition to colonialism in response to the threat posed by the monarchical restoration in Europe and the Holy Alliance after the Napoleonic wars.