4) A financial institution has just bought 6-month European call options on the Chinese yuan. Suppose that the spot exchange rate is 14 cents per yuan, the exercise price is 15 cents per yuan, the risk-free interest rate in the United States is 2% per annum, the risk-free interest rate in China is 4% per annum, and the volatility of the yen is 12% per annum. Calculate the gamma of the financial institution's position. Check the accuracy of your gamma estimate by calculating the delta of the option when the exchange rate is 14 cents per yuan and 14.1 cents per yuan sequentially. 4) A financial institution has just bought 6-month European call options on the Chinese yuan. Suppose that the spot exchange rate is 14 cents per yuan, the exercise price is 15 cents per yuan, the risk-free interest rate in the United States is 2% per annum, the risk-free interest rate in China is 4% per annum, and the volatility of the yen is 12% per annum. Calculate the gamma of the financial institution's position. Check the accuracy of your gamma estimate by calculating the delta of the option when the exchange rate is 14 cents per yuan and 14.1 cents per yuan sequentially