Question 1-11 Let f(x.y) denote the forward rate over the period from to y. Suppose you are given that f(0.1) = 1%, f(1,2)-2%, f(2,3) = 396, f(3,4) = 4%. Compute the 4-year spot rate. (a) (b) (c) (d) 2.2% 2.5% 2.8% 3.1%