Please answer 8.2 using the information given in 8.1

2. Determine an optimal stopping time for the security from 8,1 . That is, find a stopping time such that the process (Vnrn)n=0n=3 is a Martingale in the risk-neutral measure. Make sure to explain how you are using the given data to make this determination! Hint: a theorem we covered in class makes this fairly straightforuard. 1. The stock price process for a stock is given by (S0,S1,S2,S3) in the 3-period binomial model with model parameters r,u, and d as given below: S0=32,r=101,u=23,d=21 Work out the following for a 3-period American put on this stock with a strike price of 23. - The full price process tree (S0,S1,S2,S3) for this stock. - The full intrinsic value process tree (G0,G1,G2,G3) for this security. - The full value process tree (V0,V1,V2,V3) for this security