We can actually deduce here that the best that describes Harriet Beecher Stowe's purpose in writing Uncle Tom's Cabin is: to put a human face on the suffering associated with slavery.
Purpose in writing actually refers to the reason why a writer is writing a particular topic or subject matter. It usually refers to what the writer wants to achieve by writing the piece.
We see that in Uncle Tom's Cabin, Stowe revealed the problem of slavery and how humans were treated like a property. This then shows his purpose in writing it. He wants to put a human face on the suffering associated with slavery.
Learn more about purpose in writing on https://brainly.com/question/15632673
#SPJ1