When writers create an outline, they are most likely doing this to:
-decide which details to include
-organize ideas
-review details from the reading
-develop a thesis

I think it would be the 3 option

Explanation:

When you write an outline you take the time to use the information from whatever you read

each poet admires poetry

they each admire poetry because they could just use an expression or verbally just say you but they both write in in poetry which shows they know how to write in poetry.