A body of mass M is kept on a rough horizontal surface (friction coefficient $\mu $). A person is trying to pull the body by applying a horizontal force but the body is not moving. The force by the surface on the body is $F$, where

  • A

    $F = Mg$

  • B

    $F = \mu Mgf$

  • C

    $Mg \le F \le Mg\sqrt {1 + {\mu ^2}} $

  • D

    $Mg \ge F \ge Mg\sqrt {1 + {\mu ^2}} $

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