It is true that the Renaissance began in Italy spurring out of a movement known as Humanism, that preceded it.
Laissez-faire or free enterprise system is the principle wherein the government has little or minimal interference in the nation's economy.
This principle allowed more people to open, specialize, and industrialize their business efforts. This practice boosted the economy making more profit not only for the business people but for the nation as a whole.
It also benefited consumers because they were able to have more choices in terms of basic and luxury products.
The correct answer is B) the clause barring the government from establishing a religion.
The Warren Court ruled that official prayer in public schools is unconstitutional because it violates the clause barring the government from establishing a religion.
We are referring to the case Engel v. Vitale that started on April 3, 1962, and ended on June 25, 1962. The Supreme Court decision was that it was unconstitutional to have an official prayer in school and asked to say it aloud in the public school premises. Chief Justice Eral Warren considered that this violated the Establishment Clause of the 1st Amendment.
The correct answer among all the other choices is A. the revival of democratic revolutions, and nationalism. This is a factor that caused German and Italian unification. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.