Answer:
I ,II and IV
Explanation:
Mortgage backed securities are either a claim for equity in a pool of mortgages, or a duty secured by a pool. Such claims reflect home loan securities. Loans borrow from mortgage lenders and then sell bundles of those loans on the resale market.
Specifically, once those loans are paid off, they sell their claim to the mortgage cash inflows. The issuer of the mortgage needs to maintain the loan, receiving principal and interest payments, and transfers those payments on to the mortgage borrower.
Therefore according to the given situation the correct answer is I, II, IV