20. Suppose you wish to earn an effective annual return of 6% from buying a security. The security will pay cash flows of $900 at the end of year 1, $100 at the end of year 2, and $600 at the end of year 3. (A) What price should you pay for the security? (B) Suppose you buy the security for your answer to part (A) above, and you sell the security one year later, just after receiving the $900 dividend. Assume that when you sell, others in the market also demand a 6% return from holding the security. Show that when you sell the security your effective annual return is 6%. (C) Now suppose you buy the security for $1350, and you sell the security one year later, just after receiving the $900 dividend. Assume that when you sell, others in the market also demand a 6% return from holding the security. What is your effective annual return