A patient presented with regurgitation of food while lying down.Anterior and Lateral view of Barium Swallow

A patient presented with regurgitation of food while lying down.Anterior and Lateral view of Barium Swallow is shown in the image.True regarding this condition is:

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  1. Traction type
  2. Pulsion Type
  3. True Diverticula
  4. Epinephric