How does the use of rhetoric in this excerpt advance the viewpoint that France is a beautiful place?

It is wonderful. There are no unsightly stone walls and never a fence of any kind. There is no dirt, no decay, no rubbish anywhere—nothing that even hints at untidiness—nothing that ever suggests neglect.

The repetition emphasizes how clean, orderly, and well-kept everything is in France.
The alliteration drives home the point that France is well-taken care of by its people.
The hyperbole emphasizes the effect the beauty of France has on Twain.
The extended metaphor gives the reader a clear image of the beauty of France.