There is no real reason for her to be there if the matter is as simple as ensuring that the Commander fathers a child, so we have to ask why the ceremony would be built this way. Why? Which of these women is most exploited by this entire process?

Assignment
You want to directly answer the question (s), not talk in circles or simply express your feelings.
Book: The Handmaids Tale by Margaret Atwood chapter 16-21 The Ceremony ISB #978-0-385-49081-8
For this question, we now go to The Handmaid’s Tale, and now that we have seen The Ceremony in action, let me ask you this:
Who is the most exploited by how The Ceremony takes place? Is it Offred who is essentially relegated to the role of a just a womb? This is an exceptionally demeaning act as Offred, a person, is essentially reduced to an organ, the uterus.
Is it Serena Joy who is forced to watch her husband? There is no real reason for her to be there if the matter is as simple as ensuring that the Commander fathers a child, so we have to ask why the ceremony would be built this way.
Why? Which of these women is most exploited by this entire process?