If a U.S. importer that imports skin care products from Japan expects the Japanese Yen to appreciate against the U.S. dollar in 3 months' time when Yen payables need to be made, what can he/she do to hedge the currency risk? a.        Buy a put option on Yen b.        Sell a put option on Yen c.        Buy a call option on Yen d.        Sell a call option on Yen e.        Any of the above will do