Please answer the following question. Option A is not correct. Thank you.

7. Which of the following is the correct statement about the duration of a 5 year Zero Coupon bond? A. Can't be determined without the coupon rating. B. The duration is between 1 and 5 years but closer to 1 year. C. The duration is between 1 and 5 years but closer to 5 years. D. The duration is exactly 5 years. Select one: A. A B. B C. C D. D