Fight Finance

(a) The long trader paid the option premium at the start.

(b) The option is 'out of the money' at the start.

(c) The long trader wishes for the underlying CBA stock price to fall.

(d) The option can only be exercised at maturity.

(e) If the stock price falls to $60 at maturity, then the long trader can buy the underlying stock for $60, exercise his option to sell the underlying stock to his counterparty for $75, making a payoff at maturity of $15 and a profit of $13.