If $\sin \,\theta  + \sqrt 3 \cos \,\theta  = 6x - {x^2} - 11,x \in R$ , $0 \le \theta  \le 2\pi $ , then the equation has solution for

  • A

    one value of $x$

  • B

    two value of $x$

  • C

    infinite value of $x$

  • D

    no value of $x$

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