The term structure for (annual effective) interest rates is as follows for corresponding maturities: 1 year: 5%, 2 year: 10%, 3 year: 15%, 4 year: 20% (a) Find the swap rate for a 4-year interest rate swap of floating rate interest for fixed rate interest if the notional amount is level for the four year swap tenor. (b) Suppose that the notional amount is $1,000,000 for the first two years and $2,000,000 for the third and fourth years. Find the swap rate. (c) A two-year deferred swap with a tenor of two years is arranged at the beginning of the first year. If the notional amount is level for the swap, determine the swap rate.