question_answer

Simplify :\[\left[ \left\{ \left( 34\,+\,\frac{5}{7} \right)\,+\,\frac{1}{2} \right\}\,-\,3\frac{7}{9} \right]\]

A)  \[31\frac{2}{9}\]                      

B)  \[31\frac{1}{7}\] 

C)  \[19\frac{6}{7}\]                                  

D)  \[16\frac{1}{2}\]

E)  None of these