If $(1 + \sin A)(1 + \sin B)(1 + \sin C)$$ = (1 - \sin A)(1 - \sin B)(1 - \sin C),$ then each side is equal to

  • A

    $ \pm \sin A\sin B\sin C$

  • B

    $ \pm \cos A\cos B\cos C$

  • C

    $ \pm \sin A\cos B\cos C$

  • D

    $ \pm \cos A\sin B\sin C$

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