What is the value of the per-person aggregate output at period t = 1?

Consider a numerical example of the Solow model. Assume that n = 0.2 s = 0.3 d = 0.1 'l '1 F(K,N) = K2N2 Initially, in period t=0, that z = 3 N = 1 and the economy is in a steady state Suppose that at t=1, total factor productivity falls to z = 2 and then returns to z = 3 for periods t=2, 3, 4, What is the value of the per-person aggregate output at period t = 1? O A. 10.8 C) B. 9 O C. 3.29 O D. 6.57 O E. None of the above