A bond is traded with the following terms: 1) $100 of face value; 2) two years to maturity; 3) 20% annual coupon rate; 4) 20% yield to maturity. Which one below is closest to the bond's duration? (Please round your calculation to the nearest 2nd decimal.)

Select one: A. 1.83 B. 1.85 C. 1.87 D. 1.89 E. 1.91