Consider an option on a non-dividend-paying stock when the stock price is $30, the exercise price is $29, the risk-free rate is 5% per annum, the volatility is 25% per annum, and the time to maturity is four months. Use 1-step binomial option pricing model.

a) What is the price of the option if it is a European call?

b) What is the price of the option if it is a European put?

c) Verify the put-call parity holds.