Suppose Euler's method with h = 0.5 is used to the initial-value problem y' = t(1 + ), , y(1) = 1. Which one of the following is closest to the approximation of y(2)? ( a) 4.35 O b) 1.85 O c) 2.59 O d) 2.71 O e) 4.79 Of) 4.11