What are the four main types of business enterprises and explain their principle features?

The four main types of business enterprises are sole proprietorships, partnerships, corporations, and limited liability companies (LLCs). Sole proprietorships are owned by a single individual, allowing for complete control but also personal liability. Partnerships involve two or more individuals sharing ownership and responsibilities, with profits and liabilities typically shared. Corporations are separate legal entities that offer limited liability to their owners (shareholders) but are subject to stricter regulations, while LLCs combine features of partnerships and corporations, providing liability protection and flexible management structures.