The correct answer is "It was really about freedom for people all over the world."
Based on the quote, what Thomas Paine believed about the American Revolution was that "It was really about freedom for people all over the world."
Thomas Pain was the author of the influential pamphlet called "Common Sense," an important document published in 1776 that invited the colonists to support the American Revolution to demand independence from the English crown.
Pain believed that the search for liberty was not limited to the American colonies, but to all the places of the world that lived under oppression from the monarchies. And he was right. The American Revolutionary War of Independence influenced other independence movements, as was the case of the French Revolution and the Mexican Independence movement.