question_answer

If \[f(x)=\frac{2x+5}{{{x}^{2}}+x+5}\], then \[f[f(-1)]\] is equal to

A)  \[\frac{149}{155}\]                        

B)         \[\frac{155}{147}\]

C)  \[\frac{155}{149}\]                          

D)         \[\frac{147}{155}\]