question_answer

If \[\mathbf{x}=\mathbf{2},\text{ }\mathbf{y}=\mathbf{3}\] and \[\mathbf{z}=\mathbf{5}\], then the value of \[\frac{{{\mathbf{z}}^{\mathbf{2}}}\mathbf{-}\left( \mathbf{x+y} \right)}{\mathbf{3xyz}}\] will be:

A)  \[\frac{20}{43}\]    

B)                                \[\frac{3}{19}\]         

C)  \[\frac{2}{19}\]            

D)         \[\frac{2}{9}\]

E)  None of these