The US government supported westward expansion. It envisioned a nation that covered a vast expanse of land from the East Coast to the Ocean. The acquisition of Texas, the Oregon Territory, and the between 1845 and 1853 helped make this vision a reality. Most of this expansion happened during the presidential term of .

ok sorry the answer is a. by their religion

answer: the third option is your answer

explanation:

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

your answer would be a) no nation can be economically self-sufficient.

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