What is photojournalism?
a. a photographic narrative series consisting of a series of related images.
b. a report of recorded facts about the world to provide others with information.
c. photography that documents social situations in an attempt to capture cultural changes.
d. a darkroom technique to create surreal images.

I love Photo Journalism! The problem is that I can't go after that profession. Anyways, I remember that I took Photography last year. Maybe I can help you out? So Photo Journalism is answer c. documents social situation... because when you're a Journalist you are suppose to go to different parts of the world to document social activity, cultural events, etc.

It's nice to be a Photo Journalist. And it's interesting the magazine Awake: Can you trust News Media? Found in JW.org You have an idea of what you can do and don't if you want to be a part of the media such as being a Journalist. 

a. a photographic narrative series consisting of a series of related images.