What kind of writing samples should I provide?

So I have a second interview scheduled next week for a Marketing Coordinator and I have to bring some writing samples to share. When I was doing some reading, it says that most writing samples should be less than 3 pages. However, most of my writing I did in college was essay writing. I would provide more details of the job but I don’t want to dox myself.

I was going to write a fictional press release, but I’m also stumped as to what else to include/possibly write. Is it best to write stuff in the same realm as the workplace?

Thank you

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