3. Suppose you had written the US dollar option from the previous question. You now need to hedge the option, and in order to do so, have decided to calculate Delta (), Gamma () and Theta (). (a) Calculate the three quantities using the finite difference technique, using of 0.001. Hint: This may be done quite quickly in excel. (b) Now compare your solutions to the results from the formulae in the textbook/notes. 1