In a certain mumber, the first digit is greater than the second digit by $$2$$, and the second digit is greater than the third digit by $$3$$. It is one of the numbers listed below. What number is this? ($$2007$$ Math Kangaroo Problem, Level $$1-2$$, Question \#$$19$$) 
选项为:A:$$53$$  B:$$530$$  C:$$233$$  D:$$521$$  E:$$431$$  请回答其中一个选项.