XYZ (American firm) expects to receive 500,000 euros in 6 months from its operations in Spain. Which of the following techniques could be used to hedge XYZ 's exposure to currency risk? Buy a six month forward contract with 500,000 euros attached. Buy six month call options with 500,000 euros attached. Buy six month put options with 500,000 euros attached. Sell six month put options with 500,000 euros attached