Now consider an Ornstein-Uhlenbeck process X = (Xt)t≥0, defined by the stochastic differential equation dXt = -ΙXtdt + σdZt, where Z = (Zt)t≥0 is a standard Brownian motion under the probability measure P and λ > 0. (i) Given a starting value, X0 = 0, solve the stochastic differential equation.