Ralphie uses a boat to move merchandise between two shipping ports. The boat can hold no more than 2,157 kilograms of merchandise. Ralphie already has 1,589 kilograms of merchandise loaded onto the boat and wants to load more boxes of merchandise that weigh 67 kilograms each.

Which of the following inequalities could be used to solve for x, the number of boxes of merchandise that can still be loaded onto the boat?
A.
67x + 1,589 < 2,157
B.
67x < 1,589
C.
67x < 2,157
D.
67x - 1,589 < 2,157