The range of function $f : R \rightarrow R$, $f(x) = \frac{{{{(x\, + \,1)}^4}}}{{{x^4} + \,1}}$ is
The range of function $f : R \rightarrow R$, $f(x) = \frac{{{{(x\, + \,1)}^4}}}{{{x^4} + \,1}}$ is
- A
[$0 , \infty$]
- B
[$0 , 16$]
- C
[$0 , 8$]
- D
[$0 , 32$]
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