Answer :
Option A that American workers would be undercut by cheap labour from the new colonies is the correct option of the given statement.
Why did the US expand into the Pacific?
This marine expansion, which was primarily motivated by trade, had significant ramifications for American foreign policy. The first incentive for American people and officials to visit the Pacific region was the allure of the profits to be made from the China trade.
Who supported US expansion in the Pacific?
William Seward, the country's secretary of state in the 1860s, intended to dominate trade in the Pacific. He convinced Congress to annex, or assume control of, Midway Island, which is located in the centre of the Pacific Ocean, in 1867. The island was incorporated into the US.
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