What is the main point of historical fiction
A. To inform
B. To persuade
C. To entertain
D. To inspire

C. To entertain

Explanation:

It is not to inform because it is not true, fiction is not real. But Historical fiction is based on the past.

For example: "All the Light We Cannot See"  a Novel by Anthony Doerr.

It is based in 1934.

Marie-Laure LeBlanc a six year old blind girl living in Paris with her father, the master locksmith at the Museum of Natural History. Her father constructs a scale model of their neighborhood to help her visualize her surroundings.  In Germany, 8-year-old Werner Pfennig is an orphan in the coal-mining town of Zollverein. Werner is exceptionally bright and has a natural skill for repairing radios. After he finds a broken one with his younger sister Jutta, he fixes it and he uses it to hear science and music programs transmitted across Europe.

When Germany invades France in 1940, Marie-Laure and her father flee to the coastal town of Saint-Malo to take refuge with her great-uncle Etienne, a veteran of WWI who spent his time broadcasting old records of his dead brother across Europe. Werner's skill earns him a place at the National Political Institute of Education at Schulpforta, a boarding school teaching Nazi values. Werner age is wrongly increased in the papers to put him out of school and is soon placed in the Wehrmacht, tracking illegal enemy signals alongside Volkheimer, a soldier from Schulpforta.  

As the Allied forces lay siege to Saint-Malo, Werner is trapped beneath a pile of rubble, where he stays alive without food or water for days just by listening to Marie-Laure's radio broadcasts in which she reads from her Jules Verne novel, Twenty Thousand Leagues Under the Sea which was in Braille.  

The story ends in 2014 with Marie-Laure, now 86 years old, walking with her grandson, Michel in the streets of Paris where she grew up.