The price of a European put option that expires in 1 year and has a strike price of $30 is $3.25. The underlying stock price is $28, and a dividend of $0.40 is expected in 1 month, 5 months and 9 months. The term structure is flat, with all risk-free interest rates being 6%. What is the price of a European call option on the same underlying stock that expires in 1 year and has a strike price of $30?