If $x_1 = 3$ and $x_{n+1} = \sqrt{2 + x_n}$ for $n \ge 1$,then $\lim_{n \to \infty} x_n$ is equal to

  • A
    $-1$
  • B
    $2$
  • C
    $\sqrt{5}$
  • D
    $3$

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