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A baker sells cookies for $1.50 each. If a minimum of two dozen cookies is ordered, the baker gives a 40% discount for each cookie ordered after the minimum has been met. The cost of an order of cookies after this discount is given by the expression below.

1.5c-0.4(c-24)

Which of the following parts of the expression represents the number of cookies to which the discount will be applied?

A. 0.4(c–24)

B. c–24

C. 1.5c–0.4

D. 1.5c