What is the Modified Duration (MD) of the following Zero-Coupon Bond:

P = $100,000 / (1 + 0.10)Maturity = 5 years

Select the correct answer:

1.- MD = 4 years

2.- MD = 5 years

3.- MD = 5 x(1.10)5 years

4.- MD = 5 / (1.10) years

5.- Other: _______ years