I believe it would be Evaluation, since we are evaluating the differences of two diets and their benefits.
During world war II, the persecuted Jews would often hide in a safe haven to escape the Nazis.
The prologue's lines foreshadow the story's main plot: a tragedy between star crossed lovers. It revolves mainly around civil blood and how it will make the civil hands' unclean which is the main 'clue' of the ending of the story which is death.
Hope this helps!
