Which of the following would best refuse a customer claim?
选项：

A:We are sorry that we cannot give you a full refund for your DVD player.;
B:Because you damaged the DVD player by trying to repair it yourself, we are unable to give you a full refund.;
C:The damage to your DVD player is not covered by the warranty, as explained in the enclosed copy of the warranty that came with your DVD player.;
D:Although a full refund cannot be issued, we would be happy to repair your DVD player for a nominal fee.