Which of these is a Pre-Writing Exercise? O Editing
O Publishing
O Brainstorming
O Revising

Brainstorming

Reason: I just did Process of Elimination because Editing means to fix the mistakes in ones writing. Publishing means to send ones writing for the public or set audience to read it. And Revising is for someone to correct // read ones essay, and the last answer (Which is Correct) is Brainstorming which means to writes one ideas down and write a practice essay.

I hope this helps, and Happy Holidays! :)

i think the answer might compound