Concept:The key difference lies in the ability to invite the public to buy shares.Explanation:A private limited liability company cannot offer its shares to the general public. Its shares are usually held by a small group of people, such as family or friends. A public limited liability company is allowed to sell shares to the public through avenues like the stock exchange. Therefore, the private company restricts public share ownership, while the public company does not.Answer:C. Is unable to offer shares to the public.