A certain grocery purchased x pounds of produce for p dollars per pound. If y pounds of the produce had to be discarded due to spoilage and the grocery sold the rest for s dollars per pound, which of the following represents the gross profit on the sale of the produce?

(x - y)s - xp

(x - y)p - ys

(s - p)y - xp

xp - ys

(x - y)(s - p)


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