Corporate funds have independent legal personality, investors are shareholders, and fund management companies are entrusted to operate and manage fund assets as professional investment consultants, so option A is incorrect; According to different investment objects, funds can be divided into stocks, bond funds, money market funds and mixed funds, so option B is incorrect; For active funds, the fund manager actively looks for a portfolio that exceeds the performance of the benchmark portfolio for investment, so option C is incorrect; Public Offering of Fund can offer shares to the public with uncertain targets and low investment, which is suitable for small and medium investors. Because of the large number of investors involved in public offering funds, stricter supervision and higher requirements for information transparency, option D is correct.