Why did the u. s. feel it had the authority to invoke the monroe doctrine?

a)the country had stood up to the british in two separate wars
b)the president felt a need to issue a command to the europeans
c)the people wanted to other countries
d)the europeans asked for their in keeping order in their colonies

The correct answer is A. The U.S. feel it had the authority to invoke the Monroe Doctrine as it had stood up to the British in two separate wars.

Explanation:

The Monroe Doctrine, synthesized in the phrase "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.

The Americans developed this doctrine driven by their two victories against the British, both in the War of Independence and the War of 1812, in which they reaffirmed their sovereignty over their territories and demonstrated their military capabilities.