Respuesta :
The two elements of historical fiction in "The Unbreakable Code" are:
B. reference to a real group of people that assisted in WWII.
C. reference to a real invasion that occurred during WWII.
What is historical fiction?
Historical fiction is actually known as a genre in literature that makes use of settings of past events but at the same time the story is fictional. It then means that the plot takes place in a setting that is related to a past event.
Authors use historical fiction to also explore historical figures in such settings in order to help the reader's understanding.
Learn more about historical fiction on https://brainly.com/question/895875