Lee has $1$ red cube, $1$ yellow cube, $2$ blue cubes and $3$ green cubes. How many ways are there for Lee to arrange his cubes in a row if cubes of the same color is indistinguishable? 
选项为:A:$$210$$  B:$$420$$  C:$$630$$  D:$$840$$  E:$$1050$$  请回答其中一个选项.