Let $x_n = (2^n + 3^n)^{\frac{1}{2n}}$ for all natural numbers $n$. Then,

  • A
    $\lim_{n \to \infty} x_n = \infty$
  • B
    $\lim_{n \to \infty} x_n = \sqrt{3}$
  • C
    $\lim_{n \to \infty} x_n = \sqrt{3} + \sqrt{2}$
  • D
    $\lim_{n \to \infty} x_n = \sqrt{5}$

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