Consider an American call option on a stock. The stock price is $70, the time to maturity

Question:

Consider an American call option on a stock. The stock price is $70, the time to is eight months, the risk-free rate of interest is 10% per annum, the exercise price is $65, and the volatility is 32%. A of $1 is expected after three months and again after six months. Use the results in the appendix to show that it can never be optimal to exercise the option on either of the two dates. Use DerivaGem to calculate the price of the option.
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