Yes, I believe you are correct!
D the audiences familiarity of the topic.
If they aren't then you have to explain more if not then you can jump right in to your main point.
I wrote an essay about it. They’re in the photos
Pretty sure it’s D! it’s definitely not A or B, it is nonfiction. and I believe it’s D because it’s description not persuasion
He gave a cursory look at my artwork and told me that there was a dearth of evidence that I did this myself.