A local baseball stadium has a total of 2,403 seats, with 285 seats reserved for season ticket holders. If x represents the number of non-reserved seat tickets sold for the upcoming game, which of the following equations can be used to find the number of seats available for the upcoming game? A. y = 2,118 - x B. y = 2,403 - 285x C. y = 2,118 - 285x D. y = 2,403 - x