$$2015$$ Rosyth School, First Continual Assessment, Primary $$5$$, Question \#$$11$$  What is the value of $$\left( 84\div 7 \right)+7\times 6-3$$? 
选项为:A:$$33$$  B:$$51$$  C:$$57$$  D:$$111$$  请回答其中一个选项.