Thoreau begins Civil Disobedience by saying that he agrees with the motto, "That government is best which governs least." Indeed, he says, men will someday be able to have a government that does not govern at all. As it is, government rarely proves useful or efficient.
This is very often true. People's behavior often depends on what other people look like. This ugly type of prejudice often occurs even if we're not aware of it. Look at 70s, 80s, 90s, when everyone wore mullets, satin outfits, baggy jeans, respectively. Even now people usually care about fashion trends and as they change so does our perception of others.
The first answer should be correct, as none of the others make any sense.