Abby hаd аlwаys dreamed оf оwning her оwn business. After years of making decorative baskets as a hobby, she decided to turn her passion into a business. She rented a small storefront, named it Abby's Basket Creations, purchased supplies with her own savings, and began making and selling handcrafted baskets directly to customers. Abby manages the daily operations herself, makes all business decisions, keeps all the profits, and is personally responsible for any debts or obligations of the business. What form of business ownership does Abby's business represent?