Which is the best definition of a hybrid organization?

Multiple choice question.

A hybrid organization is a business form that has some attributes of a corporation and some of proprietorships$/$partnerships$.$

A hybrid organization is a business form that offers single taxation of its profits.

A hybrid organization is a firm that offers limited liability to its owners in exchange for double taxation,

A hybrid organization is a firm that started as a sole proprietorship and changed its form to a corporation.