Consider an American put option with (in CRR notation): S=$12.30, u=1.3, d=1/u, K=$10, R=1.15, and N=4 time steps. What is the premium P(0) of this call? Consider an American put option with (in CRR notation): S=$12.30, u=1.3, d=1/u, K=$10, R=1.15, and N=4 time steps. What is the premium P(0) of this call