Details of the prices of share, derivatives and interest rates are as follows: - ABC's share price is $22.50 at time 0 . - The European options on ABC have a common strike price K=$20 and mature in T=6 months. Today's put price is $1.50. - The continuously compounded risk-free interest rate is 5% per annum. - No dividends are paid on ABC's share over the option's life. Suppose you find that an errant trader quotes a call price of $4. Use this information to help answer the questions that follow. (a) The arbitrage strategy is to call, put, share, the present value of strike. (b) An immediate arbitrage profit is approximately $