$$(21\times55)+20=1175$$ is a correct calculation.  Which one of the following calculations is INCORRECT? 
选项为:A:$$1175-20=21\times55$$  B:$$21\times (55+20)=1175$$  C:$$20=1175-(21\times55)$$  D:$$(21\times55)+21=1176$$  请回答其中一个选项.