*The total cost in dollars to buy uniforms for the players on a volleyball team can be found using the function c=34.95u+6.25, where u is the number of uniforms bought. If there are at least 8 players but not more than 12 players on the volleyball team, what is the domain of the function for this situation?

A. {285.85, 320.85, 355.75, 390.70, 425.65}

B. 0 < u ≤ 12

C. 0 < c ≤ 425.65

D. {8, 9, 10, 11, 12}