Let R be the set of real numbers and the...

Let `R` be the set of real numbers and the functions `f : R->R and g : R->R` be defined by `f(x)=x^2+2x-3 and g(x)=x+1.` Then the value of `x` for which `f(g(x)) = g(f(x))` is

A

`-1`

B

0

C

1

D

2

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The correct Answer is:

A

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