Which of the following was NOT a major question facing the United States after winning the war with Mexico?

Being able to complete the International Railroad was something they did not have to worry about after the war with Mexico.

Explanation:

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.