According to nationalists, a nation-state’s government should be

controlled by european monarchs.
led by an appointed president.
voted on by european parliaments.
chosen by that nation-state.

The nationalist is an idea and movement that states that a nation should be one with the state. This movement holds to protect the interest of the nation and groups of people by maintaining national sovereignty.

Hence the option D is correct.

Learn more about the nationalists, a nation-state’s government should be.

According to nationalists, a nation-state’s government should be chosen by that nation-state.

Thus, the correct option is (D).

Explanation:

Nationalism makes people who are having a common identity to detach from the other groups. They thought that nationalism is very much needed in order to remove any oppresion caused by others. They desired to have their own state and they want the state itself to chose their own government. They didn't want others to get involved in their ruling.

It is often termed as collective egotism. It often unites people and create their own identity but eventually it leads to war and conflict with others. The most important types of nationalism are religious, cultural and ethnic nationalism. Nationalism often leads to destruction in the past days.

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.