Accumulation of lactic acid $(HC_3H_5O_3),$ a monobasic acid in tissues leads to pain and a feeling of fatigue. In a $0.10\, M$ aqueous solution, lactic acid is $3.7\%$ dissociates. The value of dissociation constant, $K_a,$ for this acid will be

  • [NEET 2013]
  • A

    $1.4 \times 10^{-5}$

  • B

    $1.4 \times 10^{-4}$

  • C

    $3.7 \times 10^{-4}$

  • D

    $2.8 \times 10^{-4}$

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