A contractor is awarded four seperate contracts on the same day.
i. One contract is rated "DO" and has a final delivery date (FDD) in 60 days.
ii. Another contract is rated "DX" and has an FDD in 40 days.
iii. Another contract is rated "DO" and has an FDD in 10 days.
iv. The fourth contract is unrated, and has an FDD in 15 days.
What is the order of priority on the contracts?
a. iv, iii, i, ii
b. ii, iii, i, iv
c. ii, iii, iv, i
d. iii, iv, ii, i