Answer:
An example of cultural diffusion is the tradition of the German Christmas pickle becoming popular in the United States.
Both Mark Twains and Thomas Eakins works portrayed a realistic view of the American life. Thomas Eakins used geometry and realism in his work. Mark Twain was an American novelist and humorist that also used realism in his work which generally entailed portraying a realistic view of life
To the best of my knowledge it's A
