Tony has $44$ shoes. He has $11$ more sneakers than boots. Which equation represents this situation? 
选项为:A:$a+(a+11)=44$, where $a$ is the number of sneakers  B:$a+(a-11)=44$, where $a$ is the number of sneakers  C:$a+11a=44$, where $a$ is the number of boots  D:$a+(a-11)=44$, where $a$ is the number of boots  请回答其中一个选项.