The correct answer is C. Nye creates a powerful image of trees to support her opinion that living among a variety of cultures is an American heritage.
Explanation
This excerpt belongs to a text "speaking Arabic" which speaks about heritage, in the excerpt the author describes how an American man thinks he has no heritage "I wish I had a heritage. Sometimes I feel - so lonely for one." and this idea is presented as contradictory because the man is surrounded by American trees and by representations of different cultures such as food from Germany and Mexico. This shows the variety of cultures is an important element in the American Heritage and the author explains this idea by describing the scene of the trees in different foods. So, the correct answer is C.