Which business model can be described as a formal business entity subject to laws, regulations, and the demands of stock holders?

A corporation is a distinct legal entity separate from its owners, subject to federal and state laws, corporate regulations, and the fiduciary demands of shareholders. It requires formal governance structures such as a board of directors and must comply with reporting and regulatory requirements that other business structures do not. This formal structure and accountability to stockholders distinguishes it from all other listed business models.

A partnership is an agreement between two or more individuals who share ownership and liability, but it does not have shareholders and is not subject to the same formal regulatory structure as a corporation.

A sole proprietorship has no legal separation between the owner and the business, and has no shareholders or formal corporate governance requirements.

An independent contractor is an individual providing services under contract and is not a formal business entity with shareholders or the same regulatory obligations as a corporation.