question_answer

If the function \[f:R\to A\] given by \[f(x)=\frac{{{x}^{2}}}{{{x}^{2}}+1}\] is subjective, then A is

A)  R                                

B)  [0, 1]

C)  (0, 1]               

D)  [0, 1)

E)  None of these