Question

manifest destiny
manifest destiny was the belief that it was americas destiny to expand to the pacific ocean. the idea was first used by john l. osullivan in 1845, when he said that americas expansion to the pacific ocean was our destiny
in 1845, a journalist named john osullivan wrote that america should occupy the whole continent which providence has given us. osullivan believed that america was chosen by god to occupy all of north america. according to him it was americas duty to spread freedom and democracy across the continent. this statement made other countries in the area, especially mexico, very nervous
what is manifest destiny?
the belief that america would conquer europe
the belief that america should have a king
the belief that america would expand to the pacific ocean

Explanation:

Manifest Destiny was the belief that America was destined to expand to the Pacific Ocean. As per the text, John O'Sullivan in 1845 said America's expansion to the Pacific Ocean was "destined", and in 1846 he wrote America should occupy the continent as it was chosen by God to spread freedom and democracy across North America. The first option about conquering Europe is wrong as there's no mention of Europe. The second option about having a king is also wrong as the text focuses on expansion, not monarchy.

Answer:

the belief that America would expand to the Pacific Ocean.