6. Suppose you are the treasurer of a U.S. multinational firm that wants to hedge the foreign exchange risk associated with your firm's sale of equipment to a Swiss firm worth CHF1,000,000. The receivable is due in six months. You want to ensure that Swiss francs are worth at least $0.70 when the francs are received so you want a strike price of $0.70. How many options contracts do you need to hedge this risk? Do you want a call or put on Swiss francs? When will you exercise the options? When will you let the options expire