In group $13$ of the long form of the periodic table, an element $X$ has a boiling point of $T_2 \ (K)$ and a melting point of $T_1 \ (K)$. Identify the element $X$ for which $T_2 - T_1 \ (K)$ is maximum.

  • A
    $Al$
  • B
    $Ga$
  • C
    $In$
  • D
    $B$

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