An expression that models the number of miles remaining to the family's destination is (657 - x), where x represents the number of miles already traveled. Roberto's family is also going on vacation. The number of miles they still have to travel is equal to 657. A possible series of events that led to these remaining miles is:

A) They traveled 235 miles so far.
B) They traveled 599 miles so far.
C) They traveled 699 miles so far.
D) They traveled 658 miles so far.