What is nato?

a) military alliance made up of multinational democracies
b) the military arm of the united nations
c) the primary military operation in any war in the balkans
d) the treaty organization that must ratify all international agreements

b.

jim crow laws were enacted in northern states.

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.