If the system of equations $2x + 3y = -1$,$3x + y = 2$,and $\lambda x + 2y = \mu$ is consistent,then:

  • A
    $\lambda - \mu = 2$
  • B
    $\lambda + \mu = -1$
  • C
    $\lambda + \mu = 3$
  • D
    $\lambda - \mu + 8 = 0$

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