You are offered a choice between two payment streams over time. Option 1 is $100/year for 5 years (first payment is today, final payment is 4 years from now). Option 2 is $100/year for 6 years, starting one year from today (first payment is 1 year from now, final payment is 6 years from now). Which option(s) do I prefer. Answer Option 1 if r is 10%, option 1 if r is 15% Option 1 if r is 10%, option 2 if r is 15% Option 2 if r is 10%, option 1 if r is 15% Option 2 if r is 10%, option 2 if r is 15%