To remove the parentheses, which one is correct? 
选项为:A:$13\times(4+5)=13\times4+5$  B:$(7+9)\times9=7+9\times9$  C:$(24+5)-(12-7)=24+5-12-7$  D:$49+(57-43)=49-57+43$  E:$57-(25+24)=57-25-24$  请回答其中一个选项.