How to solve this problem? plz solve it step by step with formulas, thank u!

(which one is the risk-free rate? 1% or 2%)

Options on Indexes and Currencies Example Suppose that the current exchange rate of AUD to CAD is 1.2 AUD/CAD and o= 0.4463. Find the price of American put option to sell CAD for AUD at K = $1.1 AUD/CAD before or at half a year from now. Assume that the risk-free rates in Canada and Australia are 2% and 1%, respectively. Find the price of the American call option today by using the two period binomial model. Options on Indexes and Currencies Example Suppose that the current exchange rate of AUD to CAD is 1.2 AUD/CAD and o= 0.4463. Find the price of American put option to sell CAD for AUD at K = $1.1 AUD/CAD before or at half a year from now. Assume that the risk-free rates in Canada and Australia are 2% and 1%, respectively. Find the price of the American call option today by using the two period binomial model