In order to better understand the world we live in, historians study all of the following except: a. societies b. governments c. current events d. fictional stories about world war ii

Except fictional stories about Wolrd War II. 

Historians will base themselves on either secondary or primary sources but never a fictional one. 

If you were to write a history book (a nonfiction) about how Hitler massacred the Jews, you wouldn't take a fiction from an author that wrote it in 2001, because it isn't real sources, but inspired from and the goal is a story, not teaching or transmitting informations.

Historians base themselves on facts, and what really happened, not on fictional stories.

Hope I could help