The Mitsubishi UFJ Financial Group forecasts that JPY will appreciate sharply against the AUD in the next month. According to the prediction, which of the following statements is/are correct? 1. Investors should buy a call option on AUD (against JPY) to make profits. ii. Investors should buy a put option on AUD (against JPY) to make profits. iii. Investors should sell a call option on JPY (against AUD) to make profits. iv. Investors should take a short position on AUD (against JPY) to make profits. Oi O i and iii O i and iv Oil and iv Oil and