Which comet was last seen in 1986 and reappears about every 76 years?
a. halley
b. hale-bopp
c. hyakutake
d. shoemaker-levy 9

The correct answer for the question that is being presented above is this one: "a. Halley." The comet that was last seen in 1986 and reappears about every 76 years is the Halley's comet. Halley's Comet is arguably the most famous comet. It is a "periodic" comet and returns to Earth's vicinity about every 75 years

I believe the answer is: It viewed European interference in the Americas as a threat to US national interests.

It helped colonies in North and South America adopt a democratic form of government.

The monroe doctrine view European interference in America as a form of manifestation of an unfriendly disposition toward the United States.

He believed that all the 'help' that the European give is a camouflage for their true intention, which is wakening United States' government from the position of Ally and slowly taking over control and replace our democracy.