The Pension Fund Regulatory and Development Authority (PFRDA) gave permission for funds managing the New Pension Scheme (NPS) to invest in infrastructure companies. Which of the following is a necessary condition for investment? I.          The infrastructure company must be listed on the stock exchanges II.         The infrastructure company must be in the BSE Sensex or the NSE Nifty III.        The infrastructure company must have positive cash flows in the past three years