Please answer part a, b and c clearly.

2. Consider a non-dividend paying share whose price is modelled using a binomial tree. The tree is generated using the algorithm that if St is the share price at time t, then in the next time- step the share price can either be St u or Std, where u > d. The continuously compounded constant risk-free rate of interest is r per unit of time. Suppose a European call option contract and a European put option contract are issued at time 0, on the share with the same strike price K and maturity at time 1. Consider the following three cases: Case 1: K d. The continuously compounded constant risk-free rate of interest is r per unit of time. Suppose a European call option contract and a European put option contract are issued at time 0, on the share with the same strike price K and maturity at time 1. Consider the following three cases: Case 1: K