2. Consider a two-step binomial tree model such that S(0) = $100, 4 = 0.3, d - -0.1, and r = 0.1. a) Find the one-step risk-neutral probability b) Find E.(S(2) S(1) = 90) c) Find P.(S(2) > 110) 2. Consider a two-step binomial tree model such that S(0) = $100, 4 = 0.3, d - -0.1, and r = 0.1. a) Find the one-step risk-neutral probability b) Find E.(S(2) S(1) = 90) c) Find P.(S(2) > 110)