A palindromic number is a number that reads the same when the order of its digits is reversed. What is the difference between the largest and smallest five-digit palindromic numbers that are both multiples of $$45$$? 
选项为:A:$$9180$$  B:$$9090$$  C:$$9000$$  D:$$8910$$  E:$$8190$$  请回答其中一个选项.