Your background does not define you. Everyone from every background is welcomed in this class, and will be treated with respect and gratitude for their participation. You are a writer first, and that's all you need to be to be accepted to this class.
That said, if you have a background that you feel will contribute to the diversity of this workshop, and you feel comfortable sharing that background, you are welcome to do so here. Every community is enriched by a diversity of background and perspective.
Note that this is not a required question, and will not decrease your chances of being accepted into the workshop if you choose not to answer.