Investors of equity investment funds, also known as fund share holders, are investors of equity investment funds and owners of fund property, and enjoy benefits and bear risks according to their fund shares. A and b are correct.

The company's equity investment fund adopts the organizational form of the company. The investor is a shareholder of the company, enjoys the rights of shareholders according to law, and undertakes limited liability for the debts of the company to the extent of its capital contribution. C is wrong and D is right.