Answer: True
Why: You have to determine your topic to know what you are writing about
Explanation: You have to know what your topic is and your main idea so that once you start writing you know what you are writing about. You can have the main plot, then add details around it. You can't write a story if you don't know what you are writing about.
I hope this helps, I apologize if I was wrong (I would not mind brainliest but I won't ask. Don't want to be pushy) Have a good day.
~Deceptiøn