यदि $\log (2 a-3 b)=\log a-\log b$ है,तो $a=$

  • A
    $\frac{3 b^{2}}{2 b-1}$
  • B
    $\frac{3 b}{2 b-1}$
  • C
    $\frac{b^{2}}{2 b+1}$
  • D
    $\frac{3 b^{2}}{2 b+1}$

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