have expiry date value at time T in Suppose in the following portfolios all options are based on the same stock, and strike price K (unless otherwise stated). In each case find the portfolio terms of ST, K: i. one call option and one put option: ii. two call options and one share sold (i.e. short): iii. one share, short one call option; iv. one (K, T) call option, short one (K2, T) put option.