Parentheses!

Algebra Level 2

Which of these four numbers is the second largest number?

$\begin{eqnarray} A & = & (6!!!)! \\ B & = & (6!!)!! \\ C & = & (6!)!!! \\ D & = & 6!!!! \\ \end{eqnarray}$

Details and Assumptions

You might want to look up the definition of Multifactorials

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