A packet of biscuits costs $$x$$ pence.  I buy $$6$$ packets.  Which expression shows how much change I will get from £$$5$$? 
选项为:A:$$5-6x$$  B:$$500-6x$$  C:$$6x-5$$  D:$$500-60x$$  E:$$6x-500$$  请回答其中一个选项.