A uniform chain of length $L$ changes partly from a table which is kept in equilibrium by friction. The maximum length that can withstand without slipping is $l$, then coefficient of friction between the table and the chain is

  • A

    $\frac{l}{L}$

  • B

    $\frac{l}{{L + l}}$

  • C

    $\frac{l}{{L - l}}$

  • D

    $\frac{L}{{L + l}}$

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