If $\alpha, \beta, \gamma$ are the mean deviations about the mean,median,and mode of the data $1, 2, 2, 3, 3, 3, 4, 6$ respectively,then

• A
  $\alpha < \beta < \gamma$
• B
  $\alpha = \beta = \gamma$
• C
  $\alpha \neq \beta = \gamma$
• D
  $\beta < \alpha < \gamma$